申请人:Kissei Pharmaceutical Co., Ltd.
公开号:US06538152B1
公开(公告)日:2003-03-25
The present invention provides novel phenoxyacetic acid derivatives represented by the general formula:
wherein R1 represents a hydroxy group, a lower alkoxy group, an aralkoxy group, an amino group, or a mono or di(lower alkyl)amino group; one of R2 and R3 is a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group, while the other is a hydrogen atom; R4 represents a halogen atom, a lower alkyl group, a halo(lower alkyl) group, a hydroxy group, a lower alkoxy group, an aralkoxy group, a cyano group, a nitro group, an amino group, a mono or di(lower alkyl)amino group, a carbamoyl group, a mono or di(lower alkyl)carbamoyl group or a group represented by the general formula:
—NHCOR5
(wherein R5 represents a hydrogen atom or a lower alkyl group); the carbon atom marked with (R) represents a carbon atom in R configuration; and the carbon atom marked with (S) represents a carbon atom in S configuration, and pharmaceutically acceptable salts thereof, which have excellent &bgr;3-adrenoceptor stimulating effects and are useful as agents for the prevention or treatment of obesity, hyperglycemia, the diseases caused by intestinal hypermotility, pollakiuria, urinary incontinence, depression, or the diseases caused by biliary calculi or hypermotility of biliary tract.
本发明提供了新型苯氧基乙酸衍生物,其通式如下:其中,R1代表羟基、较低的烷氧基、芳基烷氧基、氨基或单或二(较低的烷基)氨基基团;R2和R3中的一个是氢原子、卤原子、较低的烷基或较低的烷氧基,而另一个是氢原子;R4代表卤原子、较低的烷基、卤代(较低的烷基)基团、羟基、较低的烷氧基、芳基烷氧基、氰基、硝基、氨基、单或二(较低的烷基)氨基基团、氨基甲酰基、单或二(较低的烷基)氨基甲酰基或由通式表示的基团:—NHCOR5(其中,R5代表氢原子或较低的烷基);标有(R)的碳原子代表R构型的碳原子;标有(S)的碳原子代表S构型的碳原子,以及其药学上可接受的盐。这些化合物具有优异的β3肾上腺素能受体刺激作用,并可用于预防或治疗肥胖症、高血糖症、肠道过度活动引起的疾病、频尿、尿失禁、抑郁症或胆管结石或胆道过度活动引起的疾病。