申请人:American Home Products Corporation
公开号:US04112094A1
公开(公告)日:1978-09-05
Anti-allergic agents of N-(2-pyrazinyl) 1H- (or 2H) tetrazole-5-carboxamide derivation present the following formulae: ##STR1## in which R.sup.1 is hydrogen, lower alkylamino, di(lower)alkylamino, cyano, halo, lower alkyl or halo; and R.sup.2 is hydrogen or cyano; Or a pharmaceutically acceptable salt thereof.
N-(2-吡嗪基)1H-(或2H)四唑-5-羧酰胺衍生的抗过敏剂具有以下式子:##STR1## 其中,R1是氢、低级烷基氨基、二(低级)烷基氨基、氰基、卤素、低级烷基或卤素;R2是氢或氰基;或其药学上可接受的盐。