申请人:American Home Products Corporation
公开号:US04013647A1
公开(公告)日:1977-03-22
Anti-allergic agents of N-aromatic 1H-(or 2H) tetrazole-5-carboxamide derivation present the following formulae: ##STR1## in which R.sup.1 is --CN or --CONH.sub.2 ; R.sup.2 is hydrogen, lower alkyl, lower alkoxy, halo, polyhalo(lower)alkyl, lower alkyl carbonyl or carb(lower)alkoxy; X is --CH.sub.2 --, ##STR2## where R.sup.3 is lower alkyl and R.sup.4 is hydrogen or lower alkyl; Or a pharmaceutically acceptable salt thereof.
N-芳香基1H-(或2H)四唑-5-羧酰胺衍生物的抗过敏剂具有以下式子: ##STR1## 其中R.sup.1是--CN或--CONH.sub.2;R.sup.2是氢、低碳基、低烷氧基、卤素、多卤素(低)烷基、低烷基羰基或羰(低)烷氧基;X是--CH.sub.2 --、##STR2## 其中R.sup.3是低碳基,R.sup.4是氢或低碳基;或其药学上可接受的盐。