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 Company, Limited
公开号:US06555557B1
公开(公告)日:2003-04-29
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.
一种具有式(I)的化合物,其中A为O、S、CHR1或NR2,R1和R2为H、较低的烷基,X1和X2为H、卤素、硝基、氰基等,Y1为H、较低的烷基,Z1和Z2为H、卤素、氰基、羟基、较低的烷基等,n为2至4的整数,其药学上可接受的盐,制备该化合物的方法,含有该化合物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)显示出强大的PDE IV抑制活性以及出色的支气管扩张活性,因此,在过敏性炎症性疾病或器官炎症性疾病的治疗或预防中,特别是在伴有气道阻塞的肺部疾病(如哮喘)的治疗或预防中,它们被广泛用作PDE IV抑制剂。