2,3-DISUBSTITUTED PYRIDINE DERIVATIVES, PROCESS FOR THE PREPARATION THEREOF, DRUG COMPOSITIONS CONTAINING THE SAME AND INTERMEDIATES FOR THE PREPARATION
申请人:Dainippon Pharmaceutical Co., Ltd.
公开号:EP1120409A1
公开(公告)日:2001-08-01
A compound of the formula (I)
wherein A is O, S, CHR1 or NR2, R1 and R2 are H, lower alkyl, X1 and X2 are H, halogen, nitro, cyano, etc., Y1 is H, lower alkyl, Z1 and Z2 are H, halogen, cyano, hydroxy, lower alkyl, etc., and n is an integer of 2 to 4, a pharmaceutically acceptable salt thereof, a process for preparing the same, a pharmaceutical composition containing the same as an active ingredient, and an intermediate therefor. The compounds (I) of the present invention show a potent PDE IV inhibitory activity as well as an excellent bronchodilating activity, and hence, they are widely useful as a PDE IV inhibitor in the treatment or prophylaxis of allergic inflammatory diseases or organ inflammatory diseases, especially in the treatment or prophylaxis of pulmonary diseases accompanied by airway obstruction such as asthma.
式 (I) 的化合物
其中 A 是 O、S、CHR1 或 NR2,R1 和 R2 是 H、低级烷基,X1 和 X2 是 H、卤素、硝基、氰基等,Y1 是 H、低级烷基,Z1 和 Z2 是 H、卤素、氰基、羟基、低级烷基等,n 是 2 至 4 的整数,其药学上可接受的盐、其制备方法、含有其作为活性成分的药物组合物以及其中间体。本发明的化合物(I)显示出强效的 PDE IV 抑制活性以及优异的支气管扩张活性,因此,作为 PDE IV 抑制剂,它们在治疗或预防过敏性炎症疾病或器官炎症疾病,尤其是治疗或预防伴有气道阻塞的肺部疾病(如哮喘)方面具有广泛的用途。