Thiazolidinecarboxylic acid amide derivatives and their therapeutic uses
申请人:Sankyo Company, Limited
公开号:US05470851A1
公开(公告)日:1995-11-28
Thiazolidinecarboxylic acid amides having combined antiallergic and antiasthmatic activities with an antagonist activity against platelet Activating Factor and having the following general formula (I) ##STR1##
具有联合抗过敏和抗哮喘活性的噻唑烷羧酸酰胺,具有对血小板活化因子的拮抗活性,其一般结构式如下:
Thiazolidinecarboxylic acid amide derivatives having anti-allergic activity, their preparation and their use
申请人:Sankyo Company Limited
公开号:EP0463873A1
公开(公告)日:1992-01-02
Compounds of formula (I):
[in which R¹ is optionally substituted pyridyl; R² is hydrogen, alkyl or optionally substituted pyridyl; R³ is hydrogen or various organic groups; R⁴ is hydrogen or alkyl; A is alkylene; and Z is a substituted piperidyl, piperazinyl or homopiperazinyl group which is substituted at least by a di-substituted methyl, methoxy or methylene group, each substituent being phenyl or heterocyclyl]; and pharmaceutically acceptable salts thereof have anti-allergic, anti-asthma and anti-PAF activities. Methods of making the compounds are also provided.
importance in governing the inhibitory potency. An increase in the electron donating property of substituents toward the phenolic hydroxyl group enhanced the antioxidative activity by the stabilization of an electron-deficient radical-type transition state. The steric shielding by ortho-substituents stabilized the phenoxyradicals formed following the transition state. Derivatives having the carboxyl group