申请人:American Home Products Corporation
公开号:US04123432A1
公开(公告)日:1978-10-31
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 --, --O--, or ##STR2## where R.sup.3 is lower alkyl; and R.sup.4 is hydrogen or lower alkyl; or a pharmaceutically acceptable salt thereof.
N-芳基1H-(或2H)四唑-5-羧酰胺衍生物的抗过敏剂具有以下化学式:其中R.sup.1为--CN或--CONH.sub.2;R.sup.2为氢、低碳烷基、低烷氧基、卤素、多卤素(低)烷基、低碳烷基羰基或羰基(低)烷氧基;X为--CH.sub.2 --、--O--或R.sup.3为低碳烷基的##STR2##;R.sup.4为氢或低碳烷基;或其药学上可接受的盐。