申请人:Dainippon Pharmaceutical Co., Ltd.
公开号:US04965266A1
公开(公告)日:1990-10-23
Heteroarylcarboxamide derivatives of the formula I: ##STR1## wherein A means an alkylene group, X means <NCHPh.sub.2 or <C.dbd.CPh.sub.2 in which Ph means phenyl and .circle.Het means a group of the formulas: ##STR2## in which Y means nitrogen atom or .dbd.CH--, R.sub.1 means hydroxy, a lower alkoxy or mercapto, R.sub.2 means hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, nitro or cyano, R.sub.3 means a lower alkyl group, provided that R.sub.2 is attached at the 7-position when Y means nitrogen atom, or physiologically acceptable salts thereof, a process for preparing the same and a pharmaceutical composition containing the same as an active ingredient. The compounds of the present invention and salts thereof show an excellent antiallergic activity and thus are useful for the prophylaxis and treatment of allergic diseases.
公式I的杂环芳基羧酰胺衍生物:其中A表示烷基基团,X表示<NCHPh.sub.2或<C.dbd.CPh.sub.2,其中Ph表示苯基,.circle.Het表示以下化学式的一种基团:其中Y表示氮原子或.dbd.CH--,R.sub.1表示羟基、较低烷氧基或巯基,R.sub.2表示氢原子、卤原子、较低烷基基团、较低烷氧基团、硝基或氰基,R.sub.3表示较低烷基基团,要求当Y表示氮原子时,R.sub.2连接在7位,或其生理上可接受的盐,一种制备上述化合物的方法以及含有其作为活性成分的药物组合物。本发明的化合物及其盐表现出优异的抗过敏活性,因此对于预防和治疗过敏疾病非常有用。