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.
本发明提供了一种新型的苯氧乙酸衍生物,其表示为通式:其中R1代表一个羟基、一个较低的烷氧基、一个芳基氧基、一个氨基或一个单或双(较低烷基)氨基;R2和R3中的一个代表氢原子、卤原子、较低烷基或较低烷氧基,另一个代表氢原子;R4代表卤原子、较低烷基、卤代(较低烷基)基、羟基、较低烷氧基、芳基氧基、氰基、硝基、氨基、单或双(较低烷基)氨基、氨基甲酰基、单或双(较低烷基)氨基甲酰基或由通式代表的基团:—NHCOR5(其中R5代表氢原子或较低烷基);标有(R)的碳原子代表R构型中的碳原子;标有(S)的碳原子代表S构型中的碳原子,以及其在药学上可接受的盐,具有优异的β3-肾上腺素受体刺激作用,并可用作预防或治疗肥胖、高血糖、肠道高动力性引起的疾病、尿频、尿失禁、抑郁症或胆石或胆道高动力性引起的疾病的药物。