A piperidine derivative of formula (1) or salts thereof:
wherein R1 and R2 independently represent H or together represent O, R3 represents H, -R5-COOR6, or -COOR6 (wherein R5 is a lower alkylene group, -CONH-, or -CONHCH2, and R6 is H or a lower alkyl group), R4 represents H, an aralkyloxy carbonyl group, an aminomethyl carbonyl group, or an aralkyloxy carbonyl aminomethyl carbonyl group, A represents O or a double bond, and the broken line has the meaning that a bonding hand may be present; and preventive and therapeutic agents for allergies, antihistaminic agents, and antileucotriene agents comprising the derivative or salts as their effective component.
The compound of formula (1) has excellent antihistaminic activities and antileukotriene activities, which are well balanced, and is useful as a drug for the prevention and treatment of allergies such as asthma, allergic rhinitis, allergic dermatosis and urticaria.
式(1)的
哌啶衍
生物或其盐:
其中 R1 和 R2 独立地代表 H 或一起代表 O,R3 代表 H、-R5-COOR6 或 -COOR6(其中 R5 是低级亚烷基、-CONH- 或 -CONHCH2,R6 是 H 或低级烷基),R4 代表 H、烷氧基羰基、
氨甲基羰基或烷氧基羰基
氨甲基羰基,A 代表 O 或双键,断线的含义是可能存在键手;以及预防和治疗过敏的制剂、抗
组胺制剂和抗
白三烯制剂,其中包含作为其有效成分的衍
生物或盐。
式(1)的化合物具有优异的抗
组胺活性和抗
白三烯活性,二者平衡良好,可作为预防和治疗哮喘、过敏性鼻炎、过敏性皮肤病和荨麻疹等过敏症的药物。