2,3-disubstituted pyridine derivative, process for the preparation thereof, pharmaceutical composition containing the same, and intermediate therefor
申请人:Dainippon Pharmaceutical Company, Limited
公开号:US06765095B2
公开(公告)日:2004-07-20
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.
公式(I)的化合物,其中A是O,S,CHR1或NR2,R1和R2是H,低碳基,X1和X2是H,卤素,硝基,氰基等,Y1是H,低碳基,Z1和Z2是H,卤素,氰基,羟基,低碳基等,n是2到4的整数,其药学上可接受的盐,制备该化合物的方法,包含该化合物作为活性成分的制药组合物以及其中间体。本发明的化合物(I)显示出强大的PDE IV抑制活性以及出色的支气管扩张活性,因此,它们广泛用于过敏性炎症疾病或器官炎症疾病的PDE IV抑制剂的治疗或预防,特别是在治疗或预防伴随气道阻塞的肺部疾病如哮喘中。