Arylamide Derivatives for Treating Hyperlipemia

1. Field of the Invention

The present invention relates to novel arylamide derivatives and salts thereof, and therapeutic agents for hyperlipemia containing the derivatives or salts which exhibit excellent anti-hyperlipemic action.

2. Description of the Related Art

Conventionally, there are many drugs known as therapeutic agents for hyperlipemia. Upon clinical use of a drug for the treatment of hyperlipemia, profile of the disease and functional mechanism of the drug must be taken into account for properly select a drug which is suited for the purpose of treatment. Generally speaking, the purpose of administering the drug is to lower the level of total serum cholesterol (TC), lower the level of triglyceride (TG), or to lower the levels of both, and drugs are selected accordingly.

Recently, the dangerousness of hypertriglyceridemia is highlighted as a risk factor of arteriosclerosis, coronary diseases, cerebrovascular disorders, obesity and the like diseases which involve hyperlipemia, and from the viewpoint of the prevention and treatment of diseases associated with hyperlipemia, the importance of lowering the level of triglyceride in blood has now been recognized.

Conventionally, clofibrate-type drugs have been developed to lower the level of triglyceride in blood, and clofibrate, clinofibrate, phenofibrate, bezafibrate and the like are clinically used.

However, these clofibrate-type drugs are accompanied by adverse side effects such as gastroenteric disorders and liver disorders, and moreover, they must be administered in a large quantity for obtaining a certain clinical effect, and the effect is still unsatisfactory.

Accordingly, therapeutic agents for hyperlipemia which exhibit excellent anti-hyperlipemic action and are very safe have still been desired.

Under the above-mentioned circumstances, the inventors of the present invention have synthesized many arylamide derivatives and carried out extensive studies on their anti-hyperlipemic action, and have found that the arylamide derivatives represented by the formula (1) which will be described hereinbelow or salts thereof have excellent action of lowering the level of cholesterol in blood, lowering the level of triglyceride in blood, are very safe and are useful as a therapeutic agent for hyperlipemia associated with arteriosclerosis, myocardial infarction, high blood pressure and cerebrovascular disorders, leading to completion of the present invention.

Accordingly, an object of the present invention is to provide an arylamide derivative represented by formula (1) and salts thereof: ##STR4## wherein Ar represents a group ##STR5## in which R.sup.1, R.sup.2 and R.sup.3 are the same or different from each other and each independently represents a hydrogen atom, a halogen atom, a hydroxyl group, an alkyl group which may be substituted by a halogen atom, an alkoxy group, an alkenyl group, an acylamino group or a carboxyalkyloxy group,

a naphthyl group, a pyridinyl group, a furyl group, a thienyl group, a quinolyl group or an indolyl group; Y represents a group ##STR6## and Q represents --O-- or a single bond, Z represents a C1 to C3 alkylene group or a group ##STR7## in which R.sup.5 and R.sup.6 each independently represents an alkyl group; R.sup.4 represents a hydroxyl group, an alkoxy group or a group --NH(CH.sub.2).sub.m COOH, in which m is a number of 1 to 3.

Another object of the present invention is to provide a therapeutic agent for hyperlipemia which comprises the above-described arylamide derivative (1) or a physiologically acceptable salt thereof as an active component of the agent.

A further object of the present invention is to provide a use of the above-described arylamide derivative (1) or a physiologically acceptable salt thereof as an active component in pharmaceuticals.

A still further object of the present invention is to provide a method for treating hyperlipemia which comprises administering the above-described arylamide derivative (1) or a physiologically acceptable salt thereof as an active component to a subject in need thereof.

In formula (1), the alkyl group is preferably linear or branched, and has 1 to 6 carbon atoms (hereinafter may be referred to as C1 to C6, and similar simplification will be employed throughout the specification). Specific examples of the alkyl group include a methyl group, an ethyl group, a n-propyl group, an i-propyl group, a n-butyl group, an i-butyl group, a t-butyl group, a n-pentyl group, an i-pentyl group, a n-hexyl group and the like. Examples of the halogen atom include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom. The alkyl group substituted by a halogen atom is preferably a C1 to C6 linear or branched alkyl group substituted by 1 to 3 halogen atoms, and specific examples thereof include a trifluoromethyl group, a 1,1,1-trifluoroethyl group and the like. The carboxyalkyloxy group preferably has 2 to 7 carbon atoms in total, and specific examples thereof include carboxymethyloxy group, carboxyethyloxy group, carboxypropyloxy group and the like. The alkoxy group is preferably a C1 to C6 linear or branched group and specific examples thereof include a methoxy group, an ethoxy group, a n-propyloxy group, an i-propyloxy group, a n-butyloxy group, an i-butyloxy group, a t-butyloxy group, a n-pentyloxy group, an i-pentyloxy group, a n-hexyloxy group and the like. The alkenyl group preferably has 2 to 6 carbon atoms, and specific examples of the alkenyl group include a vinyl group, a propenyl group, an allyl group, a butenyl group, a pentenyl group and the like. The acylamino group is preferably an alkanoylamino group having 2 to 6 carbon atoms, and specific examples thereof include a formyl amino group, an acetamino group, a propionylamino group, a butyrylamino group and the like. Examples of C1 to C3 alkylene group include a methylene group, an ethylene group and a propylene group.

Furthermore, in formula (1), preferable examples of Ar include a group ##STR8## or a pyridinyl group, more preferably a group ##STR9## in which R.sup.7 represents a hydrogen atom, a halogen atom or an alkyl group, and most preferably a phenyl group substituted by a halogen atom. Examples of Y which are particularly preferred include a group ##STR10## Examples of Q which are particularly preferred include --O--. Preferable examples of Z include a group ##STR11## and in particular ##STR12## Preferable examples of R.sup.4 include a hydroxyl group and an alkoxy group, and in particular a hydroxyl group.

No particular limitation is imposed on the salts of the arylamide derivative (1) as long as they are physiologically acceptable, and examples of the salts include alkali metal salts, inorganic acid salts, organic acid salts and the like. Specific examples of the alkali metal salts include lithium salts, sodium salts, potassium salts, magnesium salts and the like. Specific examples of inorganic acid salts include hydrochlorides, sulfates, nitrates, hydrobromates, phosphates and the like. Specific examples of the organic acid salts include acetates, oxalates, citrates, malates, fumarates, maleates, succinates, lactates, tartarates, methanesulfonates, benzenesulfonates, p-toluenesulfonates and the like.

Specific examples of the compounds of formula (1) according to the present invention include the following:

2-(1-benzoylpiperidin-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

4-(1-benzoylpiperidin-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-(1-benzoylpiperidin-4-yl).alpha.,.alpha.-dimethylphenoxyacetate,

2-{1-(4-methylbenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

4-{1-(4-methylbenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-{1-(4-methylbenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetat e,

2-{1-(4-methoxybenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

3-{1-(4-methoxybenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

4-{1-(4-methoxybenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-{1-(4-methoxybenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyaceta te,

2-{1-(4-fluorobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

3-{1-(4-fluorobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

4-{1-(4-fluorobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-{1-(4-fluorobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetat e,

2-{1-(4-chlorobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

3-{1-(4-chlorobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

4-{1-(4-chlorobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-{1-(4-chlorobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetat e,

2-{1-(4-bromobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

4-{1-(4-bromobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-{1-(4-bromobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetate

2-{1-(4-iodobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

3-{1-(4-iodobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

4-{1-(4-iodobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-{1-(4-iodobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetate,

2-{1-(4-trifluoromethylbenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylpheno xyacetic acid,

3-{1-(4-trifluoromethylbenzoyl)piperidin-4-yl }.alpha.,.alpha.-dimethylphenoxyacetic acid,

4-{1-(4-trifluoromethylbenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylpheno xyacetic acid,

Isopropyl 3-{1-(4-trifluoromethylbenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphen oxyacetate,

2-{1-(4-hydroxy-3,5-diiodobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylph enoxyacetic acid,

3-{1-(4-hydroxy-3,5-diiodobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylph enoxyacetic acid,

4-{1-(4-hydroxy-3,5-diiodobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylph enoxyacetic acid,

Isopropyl 3-{1-(4-hydroxy-3,5-diiodobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylp henoxyacetate,

2-{1-(3,5-di-t-butyl-4-hydroxybenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimeth ylphenoxyacetic acid,

3-{1-(3,5-di-t-butyl-4-hydroxybenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimeth ylphenoxyacetic acid,

4-{1-(3,5-di-t-butyl-4-hydroxybenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimeth ylphenoxyacetic acid,

Isopropyl 3-{1-(3,5-di-t-butyl-4-hydroxybenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimet hylphenoxyacetate,

2-(1-nicotinoylpiperidin-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

3-(1-nicotinoylpiperidin-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

4-(1-nicotinoylpiperidin-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-(1-nicotinoylpiperidin-4-yl).alpha.,.alpha.-dimethylphenoxyacetate,

2-(1-isonicotinoylpiperidin-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

3-(1-isonicotinoylpiperidin-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

4-(1-isonicotinoylpiperidin-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-(1-isonicotinoylpiperidin-4-yl).alpha.,.alpha.-dimethylphenoxyacetate,

2-{1-(2-furancarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

3-{1-(2-furancarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

4-{1-(2-furancarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-{1-(2-furancarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetat e,

2-{1-(2-thenoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

3-{1-(2-thenoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

4-{1-(2-thenoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-{1-(2-thenoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetate,

{2-(4-benzoylpiperazinyl)phenoxy}.alpha.,.alpha.-dimethylacetic acid,

{4-(4-benzoylpiperazinyl)phenoxy}.alpha.,.alpha.-dimethylacetic acid,

Isopropyl{3-(4-benzoylpiperazinyl)phenoxy}.alpha.,.alpha.-dimethylacetate,

[2-{4-(4-methylbenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[4-{4-(4-methylbenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

Isopropyl [3-{4-(4-methylbenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetate

[2-{4-(4-methoxybenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[3-{4-(4-methoxybenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[4-{4-(4-methoxybenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

Isopropyl [3-{4-(4-methoxybenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetat e,

[2-{4-(4-fluorobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[3-{4-(4-fluorobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[4-{4-(4-fluorobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

Isopropyl [3-{4-(4-fluorobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetate

[2-{4-(4-chlorobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[3-{4-(4-chlorobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[4-{4-(4-chlorobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

Isopropyl [3-{4-(4-chlorobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetate

[2-{4-(4-bromobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[4-{4-(4-bromobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

Isopropyl [3-{4-(4-bromobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetate,

[2-{4-(4-iodobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[3-{4-(4-iodobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[4-{4-(4-iodobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

Isopropyl [3-{4-(4-iodobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetate,

[2-{4-(4-trifluoromethylbenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethy lacetic acid,

[3-{4-(4-trifluoromethylbenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethy lacetic acid, [4-{4-(4-trifluoromethylbenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimeth ylacetic acid,

Isopropyl [3-{4-(4-trifluoromethylbenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimeth ylacetate,

[2-{4-(4-hydroxy-3,5-diiodobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dime thylacetic acid,

[3-{4-(4-hydroxy-3,5-diiodobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dime thylacetic acid,

[4-{4-(4-hydroxy-3,5-diiodobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dime thylacetic acid, Isopropyl [3-{4-(4-hydroxy-3,5-diiodobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dim ethylacetate,

[2-{4-(3,5-di-t-butyl-4-hydroxybenzoyl)piperazinyl}phenoxy].alpha.,.alpha.- dimethylacetic acid, [3-{4-(3,5-di-t-butyl-4-hydroxybenzoyl)piperazinyl}phenoxy].alpha.,.alpha. -dimethylacetic acid,

[4-{4-(3,5-di-t-butyl-4-hydroxybenzoyl)piperazinyl}phenoxy].alpha.,.alpha.- dimethylacetic acid,

Isopropyl [3-{4-(3,5-di-t-butyl-4-hydroxybenzoyl)piperazinyl}phenoxy].alpha.,.alpha. -dimethylacetate,

{2-(4-nicotinoylpiperazinyl)phenoxy}.alpha.,.alpha.-dimethylacetic acid,

{3-(4-nicotinoylpiperazinyl)phenoxy}.alpha.,.alpha.-dimethylacetic acid,

{4-(4-nicotinoylpiperazinyl)phenoxy}.alpha.,.alpha.-dimethylacetic acid,

Isopropyl {3-(4-nicotinoylpiperazinyl)phenoxy}.alpha.,.alpha.-dimethylacetate,

{2-(4-isonicotinoylpiperazinyl)phenoxy}.alpha.,.alpha.-dimethylacetic acid,

{3-(4-isonicotinoylpiperazinyl)phenoxy}.alpha.,.alpha.-dimethylacetic acid,

{4-(4-isonicotinoylpiperazinyl)phenoxy}.alpha.,.alpha.-dimethylacetic acid,

Isopropyl {3-(4-isonicotinoylpiperazinyl)phenoxy}.alpha.,.alpha.-dimethylacetate,

[2-{4-(2-furancarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[3-{4-(2-furancarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[4-{4-(2-furancarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

Isopropyl [3-{4-(2-furancarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetate

[2-{4-(2-thenoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[3-{4-(2-thenoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[4-{4-(2-thenoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

Isopropyl [3-{4-(2-thenoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetate,

2-(1-benzoylpiperidin-3-en-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

3-(1-benzoylpiperidin-3-en-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

4-(1-benzoylpiperidin-3-en-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-(1-benzoylpiperidin-3-en-4-yl).alpha.,.alpha.-dimethylphenoxyacetate,

2-{1-(4-methylbenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyac etic acid,

3-{1-(4-methylbenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyac etic acid,

4-{1-(4-methylbenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyac etic acid,

Isopropyl 3-{1-(4-methylbenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxya cetate,

2-{1-(4-methoxybenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxya cetic acid,

3-{1-(4-methoxybenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxya cetic acid,

4-{1-(4-methoxybenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxya cetic acid,

Isopropyl 3-{1-(4-methoxybenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxy acetate,

2-{1-(4-fluorobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyac etic acid,

3-{1-(4-fluorobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyac etic acid,

4-{1-(4-fluorobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyac etic acid,

Isopropyl 3-{1-(4-fluorobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxya cetate,

2-{1-(4-chlorobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyac etic acid,

3-{1-(4-chlorobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyac etic acid,

4-{1-(4-chlorobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyac etic acid,

Isopropyl 3-{1-(4-chlorobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxya cetate,

4-{1-(4-bromobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyace tic acid,

2-{1-(4-iodobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyacet ic acid,

3-{1-(4-iodobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyacet ic acid,

4-{1-(4-iodobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyacet ic acid,

Isopropyl 3-{1-(4-iodobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyace tate,

2-{1-(4-trifluoromethylbenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethyl phenoxyacetic acid,

3-{1-(4-trifluoromethylbenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethyl phenoxyacetic acid,

4-{1-(4-trifluoromethylbenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethyl phenoxyacetic acid,

Isopropyl 3-{1-(4-trifluoromethylbenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethy lphenoxyacetate,

2-{1-(4-hydroxy-3,5-diiodobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimet hylphenoxyacetic acid,

3-{1-(4-hydroxy-3,5-diiodobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimet hylphenoxyacetic acid,

4-{1-(4-hydroxy-3,5-diiodobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimet hylphenoxyacetic acid,

Isopropyl 3-{1-(4-hydroxy-3,5-diiodobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dime thylphenoxyacetate,

2-{1-(3,5-di-t-butyl-4-hydroxybenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-d imethylphenoxyacetic acid,

3-{1-(3,5-di-t-butyl-4-hydroxybenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-d imethylphenoxyacetic acid,

4-{1-(3,5-di-t-butyl-4-hydroxybenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-d imethylphenoxyacetic acid,

Isopropyl 3-{1-(3,5-di-t-butyl-4-hydroxybenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.- dimethylphenoxyacetate,

2-(1-nicotinoylpiperidin-3-en-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

3-(1-nicotinoylpiperidin-3-en-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

4-(1-nicotinoylpiperidin-3-en-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-(1-nicotinoylpiperidin-3-en-4-yl).alpha.,.alpha.-dimethylphenoxyacetate,

2-(1-isonicotinoylpiperidin-3-en-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

3-(1-isonicotinoylpiperidin-3-en-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

4-(1-isonicotinoylpiperidin-3-en-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-(1-isonicotinoylpiperidin-3-en-4-yl).alpha.,.alpha.-dimethylphenoxyaceta te,

2-{1-(2-furancarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyac etic acid,

3-{1-(2-furancarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyac etic acid,

4-{1-(2-furancarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyac etic acid,

Isopropyl 3-{1-(2-furancarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxya cetate,

2-{1-(2-thenoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

3-{1-(2-thenoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

4-{1-(2-thenoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-{1-(2-thenoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyacetate

2-{1-(4-methylbenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphen oxyacetic acid,

3-{1-(4-methylbenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphen oxyacetic acid,

4-{1-(4-methylbenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphen oxyacetic acid,

Isopropyl 3-{1-(4-methylbenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphe noxyacetate,

2-{1-(4-methoxybenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphe noxyacetic acid,

3-{1-(4-methoxybenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphe noxyacetic acid,

4-{1-(4-methoxybenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphe noxyacetic acid,

Isopropyl 3-{1-(4-methoxybenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylph enoxyacetate,

2-{1-(4-trifluoromethylbenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dim ethylphenoxyacetic acid,

3-{1-(4-trifluoromethylbenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dim ethylphenoxyacetic acid,

4-{1-(4-trifluoromethylbenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dim ethylphenoxyacetic acid,

Isopropyl 3-{1-(4-trifluoromethylbenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-di methylphenoxyacetate,

2-{1-(4-hydroxy-3,5-diiodobenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.- dimethylphenoxyacetic acid,

3-{1-(4-hydroxy-3,5-diiodobenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.- dimethylphenoxyacetic acid,

4-{1-(4-hydroxy-3,5-diiodobenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.- dimethylphenoxyacetic acid,

Isopropyl 3-{1-(4-hydroxy-3,5-diiodobenzoyl)-4-hydroxy piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetate, 2-{1-(3,5-di-t-butyl-4-hydroxybenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.al pha.-dimethylphenoxyacetic acid,

3-{1-(3,5-di-t-butyl-4-hydroxybenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alp ha.-dimethylphenoxyacetic acid,

4-{1-(3,5-di-t-butyl-4-hydroxybenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alp ha.-dimethylphenoxyacetic acid,

Isopropyl 3-{1-(3,5-di-t-butyl-4-hydroxybenzoyl)-4-hydroxypiperidin- 4-yl}.alpha.,.alpha.-dimethylphenoxyacetate,

2-(1-isonicotinoyl-4-hydroxypiperidin-4-yl).alpha.,.alpha.-dimethylphenoxya cetic acid,

3-(1-isonicotinoyl-4-hydroxypiperidin-4-yl).alpha.,.alpha.-dimethylphenoxya cetic acid,

4-(1-isonicotinoyl-4-hydroxypiperidin-4-yl).alpha.,.alpha.-dimethylphenoxya cetic acid,

Isopropyl 3-(1-isonicotinoyl-4-hydroxypiperidin-4-yl).alpha.,.alpha.-dimethylphenoxy acetate,

2-{1-(2-furancarbonyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphen oxyacetic acid,

3-{1-(2-furancarbonyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphen oxyacetic acid,

4-{1-(2-furancarbonyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphen oxyacetic acid,

Isopropyl 3-{1-(2-furancarbonyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphe noxyacetate,

2-{1-(2-thenoyl)piperidin-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylp henoxyacetic acid,

3-{1-(2-thenoyl)piperidin-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylp henoxyacetic acid,

4-{1-(2-thenoyl)piperidin-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylp henoxyacetic acid,

Isopropyl 3-{1-(2-thenoyl)piperidin-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethyl phenoxyacetate,

2-(4-benzoylpiperazinyl).beta.-phenoxypropionic acid,

3-(4-benzoylpiperazinyl).beta.-phenoxypropionic acid,

4-(4-benzoylpiperazinyl).beta.-phenoxypropionic acid,

2-{4-(4-bromobenzoyl)piperazinyl}.beta.-phenoxypropionic acid,

3-{4-(4-bromobenzoyl)piperazinyl}.beta.-phenoxypropionic acid,

4-{4-(4-bromobenzoyl)piperazinyl}.beta.-phenoxypropionic acid,

2-(1-benzoylpiperidin-4-yl).beta.-phenoxypropionic acid,

3-(1-benzoylpiperidin-4-yl).beta.-phenoxypropionic acid,

4-(1-benzoylpiperidin-4-yl).beta.-phenoxypropionic acid,

2-{1-(4-bromobenzoyl)piperidin-4-yl}.beta.-phenoxypropionic acid,

3-{1-(4-bromobenzoyl)piperidin-4-yl}.beta.-phenoxypropionic acid,

4-{1-(4-bromobenzoyl)piperidin-4-yl}.beta.-phenoxypropionic acid,

2-(1-benzoylpiperidin-3-en-4-yl).beta.-phenoxypropionic acid,

3-(1-benzoylpiperidin-3-en-4-yl).beta.-phenoxypropionic acid,

4-(1-benzoylpiperidin-3-en-4-yl).beta.-phenoxypropionic acid,

2-{1-(4-bromobenzoyl)piperidin-3-en-4-yl}.beta.-phenoxypropionic acid,

3-{1-(4-bromobenzoyl)piperidin-3-en-4-yl}.beta.-phenoxypropionic acid,

4-{1-(4-bromobenzoyl)piperidin-3-en-4-yl}.beta.-phenoxypropionic acid,

2-(1-benzoyl-4-hydroxypiperidin-4-yl).beta.-phenoxypropionic acid,

3-(1-benzoyl-4-hydroxypiperidin-4-yl).beta.-phenoxypropionic acid,

4-(1-benzoyl-4-hydroxypiperidin-4-yl).beta.-phenoxypropionic acid,

2-{1-(4-bromobenzoyl)-4-hydroxypiperidin-4-yl}.beta.-phenoxypropionic acid,

3-{1-(4-bromobenzoyl)-4-hydroxypiperidin-4-yl}.beta.-phenoxypropionic acid,

4-{1-(4-bromobenzoyl)-4-hydroxypiperidin-4-yl}.beta.-phenoxypropionic acid,

2-{4-(1-naphthalenecarbonyl)piperazinyl}phenoxyacetic acid,

2-{4-(1-naphthalenecarbonyl)piperazinyl}.beta.-phenoxypropionic acid,

2-{4-(1-naphthalenecarbonyl)piperazinyl.gamma.-phenoxybutyric acid,

3-{4-(1-naphthalenecarbonyl)piperazinyl}phenoxyacetic acid,

3-{4-(1-naphthalenecarbonyl)piperazinyl}.beta.-phenoxypropionic acid,

3-{4-(1-naphthalenecarbonyl)piperazinyl}.gamma.-phenoxybutyric acid,

4-{4-(1-naphthalenecarbonyl)piperazinyl}phenoxyacetic acid,

4-{4-(1-naphthalenecarbonyl)piperazinyl}.beta.-phenoxypropionic acid,

4-{4-(1-naphthalenecarbonyl)piperazinyl}.gamma.-phenoxybutyric acid,

2-{4-(2-naphthalenecarbonyl)piperazinyl}phenoxyacetic acid,

2-{4-(2-naphthalenecarbonyl)piperazinyl}.beta.-phenoxypropionic acid,

2-{4-(2-naphthalenecarbonyl)piperazinyl}.gamma.-phenoxybutyric acid,

3-{4-(2-naphthalenecarbonyl)piperazinyl}phenoxyacetic acid,

3-{4-(2-naphthalenecarbonyl)piperazinyl}.beta.-phenoxypropionic acid,

3-{4-(2-naphthalenecarbonyl)piperazinyl}.gamma.-phenoxybutyric acid,

4-{4-(2-naphthalenecarbonyl)piperazinyl}phenoxyacetic acid,

4-{4-(2-naphthalenecarbonyl)piperazinyl}.beta.-phenoxypropionic acid,

4-{4-(2-naphthalenecarbonyl)piperazinyl}.gamma.-phenoxybutyric acid,

2-{1-(1-naphthalenecarbonyl)piperidin-4-yl}phenoxyacetic acid,

2-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.beta.-phenoxypropionic acid,

2-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.gamma.-phenoxybutyric acid,

3-{1-(1-naphthalenecarbonyl)piperidin-4-yl}phenoxyacetic acid,

3-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.beta.-phenoxypropionic acid,

3-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.gamma.-phenoxybutyric acid,

4-{1-(1-naphthalenecarbonyl)piperidin-4-yl}phenoxyacetic acid,

4-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.beta.-phenoxypropionic acid,

4-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.gamma.-phenoxybutyric acid,

2-{1-(2-naphthalenecarbonyl)piperidin-4-yl}phenoxyacetic acid,

2-{1-(2-naphthalenecarbonyl)piperidin-4-yl}.beta.-phenoxypropionic acid,

2-{1-(2-naphthalenecarbonyl)piperidin-4-yl}.gamma.-phenoxybutyric acid,

3-{1-(2-naphthalenecarbonyl)piperidin-4-yl}phenoxyacetic acid,

3-{1-(2-naphthalenecarbonyl)piperidin-4-yl}.beta.-phenoxypropionic acid,

3-{1-(2-naphthalenecarbonyl)piperidin-4-yl}.gamma.-phenoxybutyric acid,

4-{1-(2-naphthalenecarbonyl)piperidin-4-yl}phenoxyacetic acid,

4-{1-(2-naphthalenecarbonyl)piperidin-4-yl}.beta.-phenoxypropionic acid,

4-{1-(2-naphthalenecarbonyl)piperidin-4-yl}.gamma.-phenoxybutyric acid,

2-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}phenoxyacetic acid,

2-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.beta.-phenoxypropionic acid,

2-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.gamma.-phenoxybutyric acid,

3-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}phenoxyacetic acid,

3-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.beta.-phenoxypropionic acid,

3-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.gamma.-phenoxybutyric acid,

4-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}phenoxyacetic acid,

4-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.beta.-phenoxypropionic acid,

4-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.gamma.-phenoxybutyric acid,

2-{1-(2-naphthalenecarbonyl)piperidin-3-en-4-yl}phenoxyacetic acid,

2-{1-(2-naphthalenecarbonyl)piperidin-3-en-4-yl}.beta.-phenoxypropionic acid,

2-{1-(2-naphthalenecarbonyl)piperidin-3-en-4-yl}.gamma.-phenoxybutyric acid,

3-{1-(2-naphthalenecarbonyl)piperidin-3-en-4-yl}phenoxyacetic acid,

3-{1-(2-naphthalenecarbonyl)piperidin-3-en-4-yl}.beta.-phenoxypropionic acid,

3-{1-(2-naphthalenecarbonyl)piperidin-3-en-4-yl}.gamma.-phenoxybutyric acid,

4-{1-(2-naphthalenecarbonyl)piperidin-3-en-4-yl}phenoxyacetic acid,

4-{1-(2-naphthalenecarbonyl)piperidin-3-en-4-yl}.beta.-phenoxypropionic acid,

4-{1-(2-naphthalenecarbonyl)piperidin-3-en-4-yl}.gamma.-phenoxybutyric acid,

2-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}phenoxyacetic acid,

2-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.beta.-phenoxypropioni c acid,

2-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.gamma.-phenoxybutyric acid,

3-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}phenoxyacetic acid,

3-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.beta.-phenoxypropioni c acid,

3-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.gamma.-phenoxybutyric acid,

4-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}phenoxyacetic acid,

4-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.beta.-phenoxypropioni c acid,

4-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.gamma.-phenoxybutyric acid,

2-{1-(1-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}phenoxyacetic acid,

2-{1-(1-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.beta.-phenoxypropioni c acid,

2-{1-(1-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.gamma.-phenoxybutyric acid,

3-{1-(1-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}phenoxyacetic acid,

3-{1-(1-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.beta.-phenoxypropioni c acid,

3-{1-(1-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.gamma.-phenoxybutyric acid,

4-{1-(1-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}phenoxyacetic acid,

4-{1-(1-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.beta.-phenoxypropioni c acid,

4-{1-(1-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.gamma.-phenoxybutyric acid,

2-{1-(1-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimeth ylphenoxyacetic acid,

3-{1-(1-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimeth ylphenoxyacetic acid,

4-{1-(1-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimeth ylphenoxyacetic acid,

2-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimeth ylphenoxyacetic acid,

3-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimeth ylphenoxyacetic acid,

4-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimeth ylphenoxyacetic acid,

2-{4-(1-naphthalenecarbonyl)piperazinyl}phenylacetic acid,

2-{4-(1-naphthalenecarbonyl)piperazinyl}.beta.-phenylpropionic acid,

2-{4-(1-naphthalenecarbonyl)piperazinyl}.gamma.-phenylbutyric acid,

3-{4-(1-naphthalenecarbonyl)piperazinyl}phenylacetic acid,

3-{4-(1-naphthalenecarbonyl)piperazinyl}.beta.-phenylpropionic acid,

3-{4-(1-naphthalenecarbonyl)piperazinyl}.gamma.-phenylbutyric acid,

4-{4-(1-naphthalenecarbonyl)piperazinyl}phenylacetic acid,

4-{4-(1-naphthalenecarbonyl)piperazinyl}.beta.-phenylpropionic acid,

4-{4-(1-naphthalenecarbonyl)piperazinyl}.gamma.-phenylbutyric acid,

2-{4-(2-naphthalenecarbonyl)piperazinyl}phenylacetic acid,

2-{4-(2-naphthalenecarbonyl)piperazinyl}.beta.-phenylpropionic acid,

2-{4-(2-naphthalenecarbonyl)piperazinyl}.gamma.-phenylbutyric acid,

3-{4-(2-naphthalenecarbonyl)piperazinyl}phenylacetic acid,

3-{4-(2-naphthalenecarbonyl)piperazinyl}.beta.-phenylpropionic acid,

3-{4-(2-naphthalenecarbonyl)piperazinyl}.gamma.-phenylbutyric acid,

4-{4-(2-naphthalenecarbonyl)piperazinyl}phenylacetic acid,

4-{4-(2-naphthalenecarbonyl)piperazinyl}.beta.-phenylpropionic acid,

4-{4-(2-naphthalenecarbonyl)piperazinyl}.gamma.-phenylbutyric acid,

2-{1-(1-naphthalenecarbonyl)piperidin-4-yl}phenylacetic acid,

2-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.beta.-phenylpropionic acid,

2-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.gamma.-phenylbutyric acid,

3-{1-(1-naphthalenecarbonyl)piperidin-4-yl}phenylacetic acid,

3-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.beta.-phenylpropionic acid,

3-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.gamma.-phenylbutyric acid,

4-{1-(1-naphthalenecarbonyl)piperidin-4-yl}phenylacetic acid,

4-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.beta.-phenylpropionic acid,

4-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.gamma.-phenylbutyric acid,

2-{1-(2-naphthalenecarbonyl)piperidin-4-yl}phenylacetic acid,

2-{1-(2-naphthalenecarbonyl)piperidin-4-yl}.beta.-phenylpropionic acid,

2-{1-(2-naphthalenecarbonyl)piperidin-4-yl}.gamma.-phenylbutyric acid,

3-{1-(2-naphthalenecarbonyl)piperidin-4-yl}phenylacetic acid,

3-{1-(2-naphthalenecarbonyl)piperidin-4-yl}.beta.-phenylpropionic acid,

3-{1-(2-naphthalenecarbonyl)piperidin-4-yl}.gamma.-phenylbutyric acid,

4-{1-(2-naphthalenecarbonyl)piperidin-4-yl}phenylacetic acid,

4-{1-(2-naphthalenecarbonyl)piperidin-4-yl}.beta.-phenylpropionic acid,

4-{1-(2-naphthalenecarbonyl)piperidin-4-yl}.gamma.-phenylbutyric acid,

2-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}phenylacetic acid,

2-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.beta.-phenylpropionic acid,

2-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.gamma.-phenylbutyric acid,

3-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}phenylacetic acid,

3-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.beta.-phenylpropionic acid,

3-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.gamma.-phenylbutyric acid,

4-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}phenylacetic acid,

4-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.beta.-phenylpropionic acid,

4-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.gamma.-phenylbutyric acid,

2-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}phenylacetic acid,

2-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.beta.phenylpropionic acid,

2-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.gamma.phenylbutyric acid,

3-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}phenylacetic acid,

3-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.gamma.phenylpropionic acid,

3-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.gamma.phenylbutyric acid,

4-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}phenylacetic acid,

4-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.beta.phenylpropionic acid,

4-{1-(2-naphthalenecarbonyl)-4-hydroxypiperidin-4-yl}.gamma.phenylbutyric acid,

3-(4-nicotinoylpiperazinyl)phenoxyacetic acid,

3-(4-nicotinoylpiperazinyl)phenylacetic acid,

3-(1-nicotinoylpiperidin-4-yl)phenoxyacetic acid,

3-(1-nicotinoylpiperidin-4-yl)phenylacetic acid,

3-(1-nicotinoylpiperidin-3-en-4-yl)phenylacetic acid,

3-(1-nicotinoyl-4-hydroxypiperidin-4-yl)phenoxyacetic acid,

3-(1-nicotinoyl-4-hydroxypiperidin-4-yl)phenylacetic acid,

3-{4-(2-furancarbonyl)piperazinyl}phenoxyacetic acid,

3-{4-(2-furancarbonyl)piperazinyl}phenylacetic acid,

3-{1-(2-furancarbonyl)piperidin-4-yl}phenoxyacetic acid,

3-{1-(2-furancarbonyl)piperidin-4-yl}phenylacetic acid,

3-{1-(2-furancarbonyl)piperidin-3-en-4-yl}phenoxyacetic acid,

3-{1-(2-furancarbonyl)-4-hydroxypiperidin-4-yl}phenoxyacetic acid,

3-{1-(2-furancarbonyl)-4-hydroxypiperidin-4-yl}phenylacetic acid,

3-{1-(2-furancarbonyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphen oxyacetic acid

3-{1-(2-furancarbonyl)piperidin-3-en-4-yl}phenylacetic acid,

3-(1-isonicotinoyl-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphenoxya cetic acid,

3-(4-thenoylpiperazinyl)phenoxyacetic acid,

3-(4-thenoylpiperazinyl)phenylacetic acid,

3-(1-thenoylpiperidin-4-yl)phenoxyacetic acid,

3-(1-thenoylpiperidin-4-yl)phenylacetic acid,

3-(1-thenoylpiperidin-3-en-4-yl)phenoxyacetic acid,

3-(1-thenoylpiperidin-3-en-4-yl)phenylacetic acid,

3-(1-thenoyl-4-hydroxypiperidin-4-yl)phenoxyacetic acid,

3-(1-thenoyl-4-hydroxypiperidin-4-yl).alpha.,.alpha.-dimethylphenoxyacetic acid,

3-(1-thenoyl-4-hydroxypiperidin-4-yl)phenylacetic acid,

3-{4-(4-quinolinecarbonyl)piperazinyl}phenoxyacetic acid,

3-{4-(4-quinolinecarbonyl)piperazinyl}phenylacetic acid,

3-{1-(4-quinolinecarbonyl)piperidin-4-yl}phenoxyacetic acid,

3-{1-(4-quinolinecarbonyl)piperidin-4-yl}phenylacetic acid,

3-{1-(4-quinolinecarbonyl)-4-hydroxypiperidin-4-yl}phenoxyacetic acid,

3-{1-(4-quinolinecarbonyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethyl phenoxyacetic acid,

3-{1-(4-quinolinecarbonyl)-4-hydroxypiperidin-4-yl}phenylacetic acid,

3-{4-(2-indolecarbonyl)piperazinyl}phenoxyacetic acid,

3-{1-(2-indolecarbonyl)piperidin-4-yl}phenoxyacetic acid,

3-{1-(2-indolecarbonyl)-4-hydroxypiperidin-4-yl}phenoxyacetic acid,

3-{1-(2-indolecarbonyl)piperidin-3-en-4-yl}phenoxyacetic acid,

3-{1-(2-indolecarbonyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphe noxyacetic acid,

2-{1-(3-indolecarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

3-{1-(3-indolecarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

4-{1-(3-indolecarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyacetic acid,

Isopropyl 3-{1-(3-indolecarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyaceta te,

2-{1-(2-quinolinecarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyace tic acid,

3-{1-(2-quinolinecarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyace tic acid,

4-{1-(2-quinolinecarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyace tic acid,

Isopropyl 3-{1-(2-quinolinecarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyac etate,

2-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxya cetic acid,

3-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxya cetic acid,

4-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxya cetic acid,

Isopropyl 3-{1-(1-naphthalenecarbonyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxy acetate,

[2-{4-(3-indolecarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[3-{4-(3-indolecarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

[4-{4-(3-indolecarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid,

Isopropyl [3-{4-(3-indolecarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetat e,

[2-{4-(2-quinolinecarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacet ic acid,

[3-{4-(2-quinolinecarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacet ic acid,

[4-{4-(2-quinolinecarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacet ic acid,

Isopropyl [3-{4-(2-quinolinecarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylace tate,

[2-{4-(1-naphthalenecarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylac etic acid,

[3-{4-(1-naphthalenecarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylac etic acid,

[4-{4-(1-naphthalenecarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylac etic acid,

Isopropyl [3-{4-(1-naphthalenecarbonyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethyla cetate, 2-{1-(3-indolecarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethyl-phenox yacetic acid,

3-{1-(3-indolecarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxya cetic acid,

4-{1-(3-indolecarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxya cetic acid,

Isopropyl 3-{1-(3-indolecarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxy acetate,

2-{1-(2-quinolinecarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylpheno xyacetic acid,

3-{1-(2-quinolinecarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylpheno xyacetic acid,

4-{1-(2-quinolinecarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylpheno xyacetic acid,

Isopropyl 3-{1-(2-quinolinecarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphen oxyacetate,

2-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphe noxyacetic acid,

3-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphe noxyacetic acid,

4-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphe noxyacetic acid,

Isopropyl 3-{1-(1-naphthalenecarbonyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylph enoxyacetate,

2-{1-(2,4-difluorobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyace tic acid,

3-{1-(2,4-difluorobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyace tic acid,

4-{1-(2,4-difluorobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyace tic acid,

Isopropyl 3-{1-(2,4-difluorobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyac etate,

[2-{4-(2,4-difluorobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacet ic acid,

[3-{4-(2,4-difluorobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacet ic acid,

4-{4-(2,4-difluorobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylaceti c acid,

Isopropyl 3-{4-(2,4-difluorobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacet ate,

2-{1-(2,4-difluorobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylpheno xyacetic acid,

3-{1-(2,4-difluorobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylpheno xyacetic acid,

4-{1-(2,4-difluorobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylpheno xyacetic acid,

Isopropyl 3-{1-(2,4-difluorobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxyac etate,

2-{1-(2,4-difluorobenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethyl phenoxyacetic acid,

3-{1-(2,4-difluorobenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethyl phenoxyacetic acid,

4-{1-(2,4-difluorobenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-, dimethylphenoxyacetic acid,

Isopropyl 3-{1-(2,4-difluorobenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethy lphenoxyacetate.

The arylamide derivatives of the formula (1) according to the present invention are prepared, for example, by the following reaction schemes 1to 5: ##STR13## wherein A represents a halogen atom, R.sup.8, R.sup.9 and R.sup.10 each independently represents an alkyl group, and Ar, Z and m have the same meaning as defined hereinbefore.

In other words, 1-arylpiperazine derivative (2) is reacted with arylcarbonyl halide (3) to obtain a compound (4). Compound (4) is then demethylated to obtain a compound (5). Compound (5) thus obtained is reacted with carboxylic acid (6) to obtain arylamide derivative (la) of the present invention. Similarly, reaction between compound (5) and compound (24) followed by hydrolysis will also yield arylamide derivative (la) of the present invention. When the thus obtained compound (la) is further reacted with an amino acid derivative (7), a compound (9) is obtained, and a hydrolysis of compound (9) yields arylamide derivative (lb) of the present invention. Meanwhile, when compound (la) is reacted with alcohol (8), arylamide derivative (la") of the present invention is obtained.

Now, each reaction step will be described in detail.

The reaction between 1-arylpiperazine derivative (2) and arylcarbonyl halide (3) is preferably carried out in a solvent which does not affect the reaction, such as tetrahydrofuran, benzene, toluene, ether, chloroform, methylene chloride and the like in the presence of a base such as triethylamine, pyridine and the like in the temperature range of 0.degree. C. to room temperature. Demethylation of compound (4) is carried out by reacting it with ethanethiol/anhydrous aluminum chloride, boron trichloride or boron tribromide in a solvent which does not affect the reaction, such as methylene chloride, chloroform and the like in the temperature range of 0.degree. C. to room temperature, or by melting with heat together with a pyridinium salt such as pyridine hydrochloride in the temperature range of 130.degree. to 200.degree. C.

The reaction between compound (5) and carboxylic acid (6) and the reaction between compound (5) and compound (24) are generally performed in the presence of a base such as sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium hydride and the like in the temperature range of 0.degree. to 100.degree. C.

The reaction between compound (la) and compound (7) is preferably carried out in a solvent which does not affect the reaction, such as methylene chloride, chloroform, tetrahydrofuran, benzene, toluene, ether, and the like in the presence of a base such as triethylamine, pyridine and the like in the temperature range of 0.degree. C. to room temperature.

The hydrolysis of compound (9) and compound (la') is generally performed in the presence of a base such as potassium hydroxide, sodium hydroxide and the like in a solvent such as water, dioxane, alcohol and the mixture thereof at room temperature.

The reaction between compound (la) and alcohol (8) is an ordinary esterification reaction carried out in the presence of a catalytic amount of concentrated sulfuric acid, methanesulfonic acid, p-toluenesulfonic acid and the like. ##STR14## wherein Ar, A, Z, R.sup.8, R.sup.9 and R.sup.10 and m have the same meaning as defined hereinbefore.

In other words, 1-benzyl-4-piperidone (10) is reacted with arylmagnesium halide (11) to obtain a compound (12). Compound (12) is then dehydrated to obtain a compound (13). Compound (13) thus obtained is reduced to obtain a 4-arylpiperidine derivative (14). Subsequently, the obtained derivative (14) is reacted with arylcarbonyl halide (3) to obtain a compound (15), followed by demethylation to obtain a compound (16). When compound (16) is reacted with compound (6), arylamide derivative (lc) of the present invention is obtained. Similarly, reaction between compound (16) and compound (24) followed by hydrolysis will also yield arylamide derivative (lc) of the present invention.

When the thus obtained compound (lc) is reacted with an amino acid derivative (7), a compound (17) is obtained, and a hydrolysis of compound (17) yields arylamide derivative (ld) of the present invention.

In the meantime, when compound (lc) is reacted with alcohol (8), arylamide derivative (lc") of the present invention is obtained.

Now, each reaction step will be described in detail.

The reaction between 1-benzyl-4-piperidone (10) and arylmagnesium halide (11) is carried out in a solvent such as tetrahydrofuran, ether and the like under the conditions of an ordinary Grignard's reaction.

Dehydration of compound (12) is performed in a solvent such as benzene, toluene, tetrahydrofuran and the like in the presence of an acid such as sulfuric acid, p-toluenesulfonic acid and methanesulfonic acid while refluxing with heat.

The reduction of compound (13) is an ordinary catalytic hydrogenation using a catalyst such as palladium-on-carbon and palladium hydroxide-on-carbon.

The reaction which introduces arylamide derivative (lc) of the present invention starting from compound (14) can be performed in a similar manner employed for obtaining compound (la) from compound (2) in Reaction Scheme 1.

The reaction which introduces arylamide derivative (ld) of the present invention starting from compound (lc) can be performed in a similar manner employed in the synthesis of compound (lb) in Reaction Scheme 1.

Further, the reaction which introduces compound (lc") starting from compound (lc) can be performed in a similar manner employed for obtaining compound (la") from compound (la) in Reaction Scheme 1. ##STR15## wherein Ar, A, Z, R.sup.9, R.sup.10 and m have the same meaning as defined hereinbefore.

In other words, 1-benzyl-4-piperidone (10) is reacted with arylmagnesium halide (18) to obtain a compound (19). Compound (19) is then reduced to obtain a compound (20). Compound (20) thus obtained is reacted with arylcarbonylhalide (3) to obtain a compound (21), then hydrolyzed to obtain a compound (22).

Subsequently, the obtained compound (22) is reacted with compound (6) to obtain arylamide derivative (le) of the present invention. Similarly, reaction between compound (22) and compound (24) followed by hydrolysis also yield arylamide derivative (le) of the present invention.

When compound (22) is dehydrated and the obtained compound (23) is reacted with compound (6), arylamide derivative (lf) of the present invention is obtained. Similarly, reaction between compound (23)and compound (24) followed by hydrolysis also yields arylamide derivative (lf) of the present invention.

When compounds (le) and (lf) are reacted with alcohol (8), arylamide derivatives (le") and (lf") of the present invention are obtained, respectively.

In order to prepare compound (19) by the reaction of 1-benzyl-4-piperidone (10) and arylmagnesium halide (18), a similar method for obtaining compound (12) from compound (10) in Reaction Scheme 2 can be followed. The reduction of compound (19) into compound (20) can be performed in a similar manner for obtaining compound (14) from compound (13) in Reaction Scheme 2.

The reaction which introduces compound (21) from compound (20) can be performed in a similar manner for obtaining compound (4) from compound (2) in Reaction Scheme 1. The hydrolysis of compounds (21), (le') and (lf') can be performed in a similar manner for obtaining compound (lb) from compound (9) described in Reaction Scheme 1. Furthermore, the reactions from compound (22) to compounds (le) and (le') can be performed in a similar manner for obtaining compound (la) from compound (5) described in Reaction Scheme 1. The dehydration of compound (22) into compound (23) is performed in a manner similar to the synthesis of compound (13) from compound (12) described in Reaction Scheme 2. The reaction which introduces compound (lf) from compound (23) is performed in a manner similar to the synthesis of compound (la) from compound (5) as described in Reaction Scheme 1.

It is also possible to obtain compound (lf) from arylamide derivative (le). This reaction can be performed in a manner similar to the synthesis of compound (13) from compound (12) as described in Reaction Scheme 2. Further, the reactions which introduce compound (le") from compound (le) and compound (lf") from compound (lf) can be performed in a manner similar to the synthesis of compound (la") from compound (la) described in Reaction Scheme 1. ##STR16## wherein Ar, A, Z, R.sup.9 and R.sup.10 have the same meaning as defined hereinbefore.

In other words, arylaminocarboxylic acid derivative (25) is reacted with his (2-haloethyl)amine hydrochloride (26) to obtain a compound (27), to which arylcarbonyl halide (3) is reacted to obtain a compound (lg'). Subsequently, the obtained compound (lg') is hydrolyzed to obtain arylamide derivative (lg) of the present invention. When compound (lg) is reacted with alcohol (8), arylamide derivative (lg") of the present invention is obtained.

Now, each reaction step will be described in detail.

The reaction between arylaminocarboxylic acid derivative (25) and bis(2-haloethyl)amine hydrochloride (26) is carried out in a solvent which does not affect the reaction, such as tetrahydrofuran, benzene, toluene, ethanol, methanol and the like while refluxing with heat in the presence of a base such as triethylamine, pyridine and the like.

The reaction for obtaining a compound (lg') from compound (27) can be performed in a similar manner for obtaining compound (4) from compound (2) described in Reaction Scheme 1, and the hydrolysis of compound (lg') can be performed in a similar manner for obtaining compound (lb) from compound (9) described in Reaction Scheme 1.

The reaction for obtaining compound (lg") from compound (lg) can be performed in a similar manner for obtaining compound (la") from compound (la) described in Reaction Scheme 1. ##STR17## wherein Ar, A, Z and R.sup.10 have the same meaning as defined hereinbefore.

In other words, arylhalogeno derivative (28) is reacted with Mg to obtain a Grignard's reagent (29), which is further reacted with 1-benzyl-4-piperidone (10) to obtain a compound (30). Subsequently, compound (30) is hydrolyzed to convert into compound (31), then reduced to obtain a compound (32). The thus obtained compound (32) is reacted with arylcarbonyl halide (3) to obtain arylamide derivative (lh) of the present invention. When compound (lh) is reacted with alcohol (8), arylamide derivative (lh') of the present invention can be obtained.

Now, each reaction step will be described in detail.

Grignard's reagent (29) can be prepared by refluxing arylhalogeno derivative (28) together with Mg with heat in a solvent which does not affect the reaction such as ether, tetrahydrofuran and the like, in the presence of a catalytic amount of I.sub.2. The reaction between compound (10) and Grignard's reagent (29) can be performed in a similar manner for obtaining compound (12) from compound (10) described in Reaction Scheme 2.

The hydrolysis of compound (30) is an ordinary acid hydrolysis, and performed, for example, by refluxing with heat in ethanol along with diluted hydrochloric acid.

The reduction of compound (31) is performed by adding hydrogen using palladium hydroxide-on-carbon as a catalyst.

The reaction for introducing arylamide derivative (lh) of the present invention from compound (32) can be performed in a similar manner for obtaining compound (4) from compound (2) described in Reaction Scheme 1. The reaction for obtaining (lh') from compound (lh) can be performed in a similar manner for obtaining compound (la") from compound (la) described in Reaction Scheme 1.

The arylamide derivative (1) according to the present invention thus obtained can be purified by conventional methods such as extraction using a solvent, recrystallization, column chromatography and the like.

The anti-hyperlipemic action of arylamide derivatives (1) of the present invention will now be described.

(1) Action on serum lipids of healthy mouse:

Groups of 7 week old male ddY mice, each group consisting of 5 mice, were provided for the test. Compounds to be tested were suspended in a 0.5% CMC-Na solution, respectively, and orally administered once a day for three days in total. Twenty-four hours from the last administration, blood was collected by excising the neck of the mice. The collected blood was centrifuged for 10 minutes at 3,000 rpm for collecting serum. The quantities of total cholesterol (T-CHO), .beta.-lipoprotein (.beta.-LP) and triglyceride (TG) in the serum were measured with an automatic analyzer manufactured by Hitachi Co. (Type 7050 Autoanalyzer) and compared with the data of the control group. The results are shown in Table 1.

(2) Action on rat hyperlipemia induced by Triton WR-1339:

Groups of rats, each group consisting of 5 rats, were fasted overnight, and the compounds to be tested were orally administered to them. Three hours thereafter, 200 mg/kg of Triton WR-1339 was intravenously administered to them. Twenty hours after the administration of Triton WR-1339, blood was collected from the lower aorta under etherization, and centrifuged for 10 minutes at 3,000 rpm for collecting serum. The quantities of total cholesterol (T-CHO), .beta.-lipoprotein (.beta.-LP ) and triglyceride (TG) in the serum were measured with an automatic analyzer manufactured by Hitachi Co. (Type 7050 Autoanalyzer) and compared with the data of the control group. The results are shown in Table 2.

As described above, the arylamide derivative (1) according to the present invention significantly lowered the levels of total cholesterol (T-CHO), .beta.-lipoprotein (.beta.-LP) and triglyceride (TG) in blood compared to the levels achieved by the comparative compound and the control.

Moreover, safety of the arylamide derivative (1) of the present invention was proved by the fact that oral administration in the amount of 300 mg/kg induced no death of mice.

When arylamide derivatives (1) or salts thereof according to the present invention are used as a therapeutic agent for hyperlipemia, the amount of administration differs depending on the body weight, age, sex, general body condition or the condition of the disease of the patient in need thereof and also on the manner of administration, and is suitably from 1 to 200 mg per day in the case of oral administration, and from 0.1 to 20 mg per day in the case of parenteral administration.

The arylamide derivatives (1) according to the present invention can be prepared into various medicinal forms such as tablets, granules, hard capsules, soft capsules, powders, fine-grain pills, pills, suspensions, injections, suppositories, drips, syrups and the like by methods known per se.

In order to prepare solid preparations, the arylamide derivatives (1) according to the present invention are preferably added with vehicles, and if necessary, with binders, disintegrants, lubricants, colorants, flavoring and taste modifying agents, bulking agents, coating agent, sugar coating agents and the like, and then formed into tablets, granules, powders, capsules, suppositories and the like by methods known per se. In order to prepare injections, the arylamide derivatives (1) according to the present invention are dissolved, dispersed or emulsified in an aqueous carrier such as distilled water for injection use in advance, or first prepared into powder suited for injection use and dissolved upon use. Examples of manners of administration of the injections include intravenous, intraportal, intraperitoneal, intramuscular, subcutaneous and the like.

The arylamide derivatives (1) according to the present invention exhibit excellent action of lowering the level of total cholesterol and triglyceride in blood. Since the derivatives are very safe compounds, they are useful for the treatment and prevention of hyperlipemia which is associated with arteriosclerosis, myocardial infarction, hypertension and cerebrovascular disorders.

The present invention is now described by way of examples, which however, should not be construed as limiting the present invention thereto.

[3-{4-(4-bromobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetic acid (Compound No. 3):

1.90 g (4.00 mmol) of ethyl [3-{4-(4-bromobenzoyl)piperazinyl}phenoxy].alpha.,.alpha.-dimethylacetate was dissolved in a solvent mixture containing 20 ml of dioxane and 20 ml of methanol, to which 20 ml of aqueous 1N NaOH solution was added and stirred for 2 hours at room temperature. After completion of the reaction, diluted hydrochloric acid was added to the reaction mixture to convert the system to acidic, followed by extraction with chloroform, washing with water and drying over anhydrous sodium sulfate. Subsequently, chloroform was distilled off under reduced pressure. The oily residue obtained was crystallized from a solvent mixture of petroleum ether, ether and ethyl acetate to obtain 1.45 g (81.0%) of the target compound as colorless crystals.

3-{1-(4-bromobenzoyl)piperidin-3-en-4-yl}.alpha.,.alpha.-dimethylphenoxyace tic acid (Compound No. 5):

1.70 g (3.68 mmol)of 3-{1-(4-bromobenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphen oxyacetic acid was dissolved in 80 ml of anhydrous tetrahydrofuran, to which 0.50 ml of concentrated sulfuric acid was added and refluxed for 14 hours. The reaction mixture was washed with a saturated saline solution, dried over anhydrous sodium sulfate, and then tetrahydrofuran was distilled off under reduced pressure. The residue was purified by silica gel column chromatography and the eluate of 10% methanol/chloroform was distilled off under reduced pressure, followed by crystallization with ether, to obtain 771 mg (47.0%) of the target compound in crystals.

Isopropyl 3-{1-(4-bromobenzoyl)piperidin-3-en-1-yl}.alpha.,.alpha.-dimethylphenoxyac etate (Compound No. 6):

1.50 g (3.25 mmol ) of 3-{1-(4-bromobenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphen oxyacetic acid was added to 100 ml of isopropyl alcohol, to which 0.10 ml of concentrated sulfuric acid was added and stirred for 54 hours while refluxing. Subsequently, the reaction mixture was added to a saturated saline solution, extracted with ethyl acetate and dried over anhydrous sodium sulfate. Ethyl acetate was distilled off under reduced pressure and the residue was purified by silica gel column chromatography. The eluate of chloroform was distilled off under reduced pressure to obtain 720 mg (45.6%) of the target compound as an oily material.

3-{1-(4-Bromobenzoyl)piperidin-4-yl}.alpha.,.alpha.dimethylphenoxy acetic acid (Compound No. 9):

4.20 g (11.0 mmol) of ethyl 3-{1-(4-bromobenzoyl)piperidin-4-yl}.alpha.,.alpha.-dimethylphenoxy acetate was dissolved in a solvent mixture containing 25 ml of dioxane and 25 ml of methanol, to which 20 ml of aqueous 2N NaOH solution was added and stirred for 16 hours at room temperature. After completion of the reaction, diluted hydrochloric acid was added to the reaction mixture to convert the system to acidic, followed by extraction with chloroform. Subsequently, the extract was washed with water and dried over anhydrous sodium sulfate, and then chloroform was distilled off under reduced pressure. The oily residue obtained was crystallized from a solvent mixture of petroleum ether and ethyl acetate to obtain 3.73 g (95.8%) of the target compound.

3-{1-(4-Bromobenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylpheno xy acetic acid (Compound No. 13):

801 mg of {1-(4-bromobenzoyl)-4-(2-hydroxyphenyl)-4-hydroxypiperidine was stirred for 9 hours at the ambient temperature of 100.degree. C. in the presence of 1.20 g (8.68 mmol) of potassium carbonate in 4.00 g (20.5 ml) of ethyl.alpha.-bromoisobutyrate. After completion of the reaction, The reaction mixture was cooled, and water was added thereto, followed by extraction with chloroform. Subsequently, the extract was dried over anhydrous sodium sulfate. Chloroform and the remained ethyl .alpha.-bromoisobutyrate was distilled off under reduced pressure to obtain 902 mg (86.4%) of ethyl 3-{1-(4-bromobenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphen oxyacetate.

78 mg of the thus obtained ethyl 3-{1-(4-bromobenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphen oxy acetate was dissolved in a solvent mixture containing 5.0 ml of methanol and 5.0 ml of dioxane, to which 5.0 ml of aqueous 1N NaOH solution was added and stirred for 1 hour at room temperature. After completion of the reaction, diluted hydrochloric acid was added to the reaction mixture to convert the system to acidic, extracted with chloroform, and dried over anhydrous sodium sulfate. Subsequently, chloroform was distilled off under reduced pressure, and then the obtained crystals were pulverized with a solvent mixture of ether and petroleum ether to obtain 63 mg (85%) of 3-{1-(4-bromobenzoyl)-4-hydroxypiperidin-4-yl}.alpha.,.alpha.-dimethylphen oxy acetic acid in colorless crystals.

The thus obtained compounds in Examples 1 to 5 along with their chemical properties are shown in Tables 3 to 10. In Formula (1) CompoundNos. Ar ##STR18## QZ R.sup.4 NMR .delta. ppm (CDCl.sub.3) IR(cm.sup.-1) Properties(mp, .degree.C.) 1 ##STR19## ##STR20## ##STR21## OH 1.59(s, 6H), 3.20(br.d, 4H), 3.62(br, 2H), 3.92(br, 2H), 6.48(d, 6 1H),.56(s, 1H), 6.67(d, 1H), 7.16(t, 1H), 7.43(s, 5H). 17261586(KBr) Colorlesscrystals118.about.119 2 ##STR22## " " " 1.59(s, 6H), 2.39(s, 3H), 3.18(br, 4H), 3.66(br.2H), 3.92(br, 2H)6.50(d, 1H),6.61(s, 1H), 6.70(d, 1H), 7.16(t, 1H), 7.22(d, 2H), 7.33(d, 2H). 17201587(Kbr) Colorlesscrystals119.about.120 3 ##STR23## " " " 1.60(s, 6H), 3.18(m, 4H), 3.60(br, 2H), 3.90(br, 2H), 6.47(dd, 1H),6.56(s, 1H), 6.66(dd, 1H), 7.16(t, 1H), 7.31(d, 2H), 7.57(d, 2H). 17271591(KBr) Colorlesscrystals112.about.113 4 ##STR24## ##STR25## " " 1.54(s, 7H), 2.52(br.s, 1H), 2.62(br, 1H), 3.55(br.s, 1H), 3.97(br.d , 1H), 4.34(br.s, 1H),5.70(br.d, 1H), 6.82(d, 1H), 7.00(m, 1H), 7.15(m, 2H), 7.34(d.2H), 7.55(d, 2H). 17351590(KBr) Colorlesscrystals164.about.16 6 5 " ##STR26## " " 1.51(s, 6H), 2.50(br.s, 1H), 2.58(br, 1H), 2.69(s, 1H), 3.58(br, s, 1H), 3.98(br.d, 1H),4.32(br.d, s 1H), 6.00(br.d, 1H), 6.83(d, 1H), 6.98(m, 2H), 7.16(t, 1H),7.34(d, 2H), 7.57(d.2H). 16201594(KBr) Colorlessc rystals 254(decomp.) In formula (1) CompoundNos. Ar ##STR27## QZ R.sup.4 NMR .delta. ppm (CDCl.sub.3) IR(cm.sup.-1) properties(mp, .degree.C.) 6 ##STR28## ##STR29## ##STR30## ##STR31## 0.94(d, 1H), 1.22(d, 6H), 1.60(s, 6H), 2.00(br, 1H), 2.54(br, 1H), 3.52(br, 2H),4.30(br, 1H), 5.08(m, 1H), 6.00(br, 1H), 6.74(m, 1H), 6.84-7.30(m, 3H), 7.34(d, 2H),7.60(d, 2H). 17301635(Neat) Colorlessoil 7 ##STR32## ##STR33## " OH 1.59(s, 6H), 1.63-1.91(m, 5H), 2.89(br, 1H), 3.10(br, 1H), 3.88(br, 1H), 4.86(br, 1H),6.76(dd, 1H), 6.81(s, 1H), 6.90(d, 1H), 7.20(t, 1H), 7.42(s, 5H). 17411594(Kbr) Colorlesscrystals122-123 8 ##STR34## " " " 1.59(s, 6H), 1.60-1.86(m, 5H), 2.38(s, 3H), 2.97(br, 2H), 3.97(br, 1H), 4.80(br, 1H),6.76(dd, 1H), 6.81(s, 1H), 6.89(d, 1H), 7.19(t, 1H), 7.21(s, 2H), 7.33(d, 2H). 3421, 17181578(KBr) Colorlesscryst als124-125 9 ##STR35## " " " 1.59(s, 6H), 1.60-1.91(m, 5H), 2.85(br, 1H), 3.10(br, 1H), 3.83(br, 1H), 4.83(br, 1H),6.74(dd, 1H), 6.80(s, 1H), 6.88(d, 1H), 7.19(t, 1H), 7.31(d, 2H), 7.54(d, 2H). 17361587(KBr) Colorlesscrystals153 -154 10 ##STR36## ##STR37## ##STR38## " 1.65.-2.15(m, 4H), 3.20-3.70(m, 4H), 3.80(br, 1H), 4.60(br, 1H), 4.64(s, 2H),6.80(dd, 1H), 7.07(d, 1H), 7.08(d, 1H), 7.27(t, 1H), 7.36(d, 2H), 7.39(d, 2H). 3400, 1735,1590(KBr) Colorlesscrystals164-166 In formula (1) CompoundNos. Ar ##STR39## QZ R.sup.4 NMR .delta. ppm (CDCl.sub.3) IR(cm.sup.-1) Properties(mp, .degree.C.) 11 ##STR40## ##STR41## ##STR42## OH 1.52(s, 6H), 1.72(m, 4H), 3.40(m, 4H), 4.20(br, 1H), 6.68(dt, 1H),7.12(m, 3H), 7.40(s, 5H) 3200, 1740,1595(KBr) Colorlesscrystals162-16 3 12 ##STR43## " " " 1.60(s, 6H), 1.55-2.20(m, 4H), 3.15-3.75(m, 4H), 3.80(br, 1H), 4.57(br, 1H),6.81(dd, 1H), 7.07(d, 1H), 7.10(br.d, 1H), 7.23(t, 1H), 7.36(d, 2H), 7.39(d, 2H). 3400, 1720,1600(KBr) Colorlesscrystals158-159 13 ##STR44## " " " 1.60(s, 6H), 1.60-2.20(m, 4H), 3.15-3.80(m, 4H), 4.60(br, 1H), 6.82(dd, 1H),7.07(d, 1H), 7.09(d, 1H), 7.26(t, 1H), 7.30(d, 2H), 7.54(d, 2H). 3510, 1720,1590(KBr) Colorlesscrystals170-171 14 ##STR45## " " " 1.50(s, 6H), 1.60-2.20(m, 4H), 3.40(br, 4H), 4.30(br, 1H), 6.68(dt, 1H),6.90-7.24(m, 3H), 7.24(d, 2H), 7.80(d, 2H). 3420, 1720,1590( KBr) Colorlesscrystals154-155 15 ##STR46## " " " 1.49(s, 6H), 1.60(m, 2H), 1.90(m, 2H), 3.10-3.60(br, 4H), 4.43(br, 1H), 6.68(m, 1H),6.90-7.23(m, 3H), 7.47(m, 1H), 7.87(m, 1H), 8.65(m, 2H). 3420, 1610(KBr) Colorlesscrystals113-115 In Formula (I) CompoundNos. Ar ##STR47## QZ R.sup.4 NMR .delta. ppm (CDCl.sub.3) IR(cm.sup.-1) Properties(mp, .degree.C.) 16 ##STR48## ##STR49## ##STR50## OH 1.59(s, 1H), 1.73(m, 1H), 1.88(m, 2H), 2.08(m, 1H), 2.50(br, 2H), 3.33(m, 1H),3.58(br, 2H), 4.57(m, 1H), 6.88(d, 2H), 7.30(d, 2H), 7.34(d, 2H), 7.56(d, 2H). 3400, 1740,1600(KBr) Colorlesscrystals127.about.128 17 " ##STR51## " " 1.45(m, 2H), 1.59(s, 6H), 2.55(br, 2H), 3.20(br, 1H), 3.50(br, 2H),4.40(br, 1H), 4.52(br, 1H), 6.60(d, 1H), 6.92(t, 1H),7.13(m, 1H), 7.34(d, 2H), 7.63(dd, 1H), 7.67(d, 2H). 3540, 1720,1580(KBr) Colorlesscry stals207.about.208 18 " ##STR52## " ##STR53## 1.20(d, 6H), 1.60(s, 6H), 1.80(br, 4H), 1.90(s, 1H), 3.46(br, 3H), 4.50(br, 1H),5.16)m, 1H), 6.70(m, 1H), 7.06(m, 3H), 7.30(d, 2H), 7.58(d, 2H). 3400, 1730,1620(Neat) Colorlessoil 19 ##STR54## " " OH 1.54(s, 6H), 0.80-2.00(m, 5H), 3.48(br, 3H), 4.50(br, 1H), 6.76(d, 1H),7.00-7.48(m, 5H), 7.82(d, 1H), 8.60(br, 1H). 3421, 1718,1617( KBr) Colorlesscrystals113.about.115 20 ##STR55## " " " 1.60(s, 6H), 0.80-2.00(m, 6H), 3.00-3.72(br, 2H), 4.32-4.60(br, 1H), 6.74-7.44(m, 4H),7.86(s, 2H) 3421, 1719,1605 (KBr) Colorlesscrystals1 25.about.127 In Formula (I) CompoundNos. Ar ##STR56## QZ R.sup.4 NMR .delta. ppm (CDCl.sub.3) IR(cm.sup.-1) Properties(mp, .degree.C.) 21 ##STR57## ##STR58## ##STR59## OH 1.44(s, 6H), 1.55(d, 1H), 1.72(d, 1H), 1.86-1.91(m, 2H), 3.17(t, 1H), 3.29(d, 1H),3.46(t, 1H), 4.40(d, 1H), 6.74(dd, 1H), 7.01-7.03(m, 2H), 7.11(t, 1H),7.43(dd, 2H), 8.65(dd, 2H). 34041617(KBr) Colorlesscryst als180.about.182 22 ##STR60## " " " 1.58(s, 6H), 1.62-1.83(m, 3H), 2.02(br, 1H), 3.22(br, 1H), 3.52(br, 2H), 4.29(br, 2H),4.58(br, 1H), 6.77-6.80(m, 1H), 7.06-7.10(m, 4H),7.19-7.23(m, 1H), 7.39-7.43(m, 2H). 3422, 17341605(KBr) Colorlesscrys tals77.about.79 23 ##STR61## " " " 1.39(s, 18H), 1.43(s, 6H), 1.64(m, 2H), 1.84(m, 2H), 3.28(br, 3H), 4.00(br, 1H),5.00(br, 1H), 6.75(dd, 1H), 6.96(d, 1H), 6.97(s, 1H),7.09(t, 1H), 7.18(s, 2H), 7.24(br, 1H). 34041601(KBr) Colorlesscrysta ls223.about.225 24 ##STR62## ##STR63## " " 1.50(s, 6H), 1.57(m, 2H), 1.77(br, 2H), 2.76(t, 1H), 2.90(br, 1H), 3.10(br, 1H),3.63(br, 1H), 4.58(br, 1H), 6.65(dd, 1H), 6.75(d, 1H), 6.88(d, 1H),7.18(t, 1H), 7.45(d, 2H), 7.50(d, 2H), 12.90(br, 1H). 17341597(KBr) Colorlesscrystals140.about.141 25 ##STR64## " " " 1.49(s, 6H), 1.58(m, 2H), 1.77(br, 2H), 2.76(m, 1H), 3.00(br, 2H), 3.69(br, 1H),4.55(br, 1H), 6.65(dd, 1H), 6.75(t, 1H), 6.88(d, 1H), 7.18(t, 1H), 7.26(m, 2H),7.49(m, 2H), 12.80(br, 1H). 17341605(KBr) Colorlesscrystals138.about.139 In Formula (I) CompoundNos. Ar ##STR65## QZ R.sup.4 NMR .delta. ppm (CDCl.sub.3) IR(cm.sup.-1) Properties(mp, .degree.C.) 26 ##STR66## ##STR67## ##STR68## OH 1.39(s, 18H), 1.42(s, 1H), 1.54(m, 2H), 1.80(m, 2H), 2.70(t, 1H), 2.95(br, 2H),3.28(br, 1H), 4.20(br, 1H),6.72(m, 3H),7.08(t, 1H), 7.17(s, 2H), 7.24(br, 1H). 34481602(KBr) Colorlesscrystals148.about.150 27 ##STR69## " " " 1.60(s, 6H), 1.64-2.12(m, 4H), 2.60-3.16(m, 4H), 4.80(br, 1H), 6.60-6.88(m, 3H),7.10-7.46(m, 2H), 7.80(dt, 1H), 8.70(br, 2H). 3447, 1 1718610(KBr) Colorlesscrystals149.about.150 28 ##STR70## " " ##STR71## 1.21(s, 6H), 1.45(s, 18H), 1.59(s, 6H), 1.65(m, 2H), 1.88(m, 2H), 2.72(m, 1H),2.97(br, 2H), 4.18(br, 1H), 4.70(br, 1H), 5.08(m, 1H), 5.39(s, 1H),6.67(dd, 1H), 6.74(t, 1H), 6.83(d, 1H). 7.17(t, 1H), 7.27(s, 2H). 3318, 1730,1602(KBr) Colorlesscrystals140.about.141 29 ##STR72## " " OH 1.48(s, 6H), 1.58(m, 2H), 1.77(d, 2H), 2.76(t, 1H), 2.88(br, 1H), 3.17(br, 1H),3.53(br, 1H), 4.61(br, 1H), 6.66(dd, 1H), 6.75(s, 1H), 6.86(d, 1H), 7.16(t, 1H),7.65(d, 2H), 7.81(d, 2H). 17211595(KBr) Colorlesscrystals148.about.149 30 ##STR73## " " " 1.60(s, 6H), 1.69-1.76(m, 2H), 1.92(d, 2H), 2.77-2.79(m, 1H), 3.04(br, 2H),4.67(br, 2H), 6.48(dd, 1H), 6.77(dd, 1H), 6.91(d, 1H), 7.02(d, 1H), 7.20(t, 1H),7.49(d, 1H). 17311592(Neat) Colorlessoil In Formula (I) CompoundNos. Ar ##STR74## QZ R.sup.4 NMR .delta. ppm (CDCl.sub.3) IR(cm.sup.-1) Properties(mp, .degree.C.) 31 ##STR75## ##STR76## ##STR77## OH 1.69(s, 6H), 1.60-1.72(m, 2H), 1.91(d, 2H), 2.71-2.77(m, 1H), 3.04(br, 2H),4.58(br, 2H), 6.67(ddm 1H), 6.74(t, 1H), 6.85(d, 1H), 7.05(dd, 1H), 7.17(t, 1H),7.31(dd, 1H), 7.45(dd, 1H). 16971580(Neat) Colorlessoil 32 ##STR78## ##STR79## "" 1.42(s, 6H), 3.00-3.90(m, 8H), 6.34(dd, 1H), 6.44(t, 1H), 6.49(dd, 1H), 7.01(t, 1H),7.48(m, 1H), 7.86(dt, 1H), 8.65(m, 2H), . 34081599(KBr) C olorlesscrystals158-160 33 ##STR80## " " " 1.58(s, 6H), 3.15(br, 4H), 3.74(br, 4H), 3.84(s, 3H), 6.44(d, 1H), 6.51(s, 1H),6.62(br, 1H), 6.92(d, 2H), 7.14(t, 1H), 7.40(d, 2H). 17201598(KBr) Colorlesscrystals168-170 34 ##STR81## " " " 1.40(s, 18H), 1.46(s, 6H), 3.00-3.70(m, 8H), 6.28(dd, 1H), 6.42(t, 1H), 6.55(dd, 1H),7.06(t, 1H), 7.18(s, 2H), 7.28(br, 1H), 3448, 1734,1600(KBr) Colorlesscrystals183-185 35 " " " ##STR82## 1.22(d, 6H), 1.45(s, 18H), 1.59(s, 6H), 3.18(br, 4H), 3.78(br, 4H), 5.07(m, 1H),5.43(s, 1H), 6.35(d, 1H), 6.50(s, 1H), 6.60(br, 1H), 7.11(t, 1H), 7.27(s, 2H). 3517, 1727,1625(KBr) Colorlesscrystals134-135