申请人:Pfizer Inc.
公开号:US04017625A1
公开(公告)日:1977-04-12
A novel series of N-(5-tetrazolyl)-1-oxo-1H-6-alkoxypyrimido[1,2-a]quinoline-2-carboxamides of the formula ##STR1## wherein each of R.sub.1 and R.sub.2 is hydrogen, lower alkyl, lower alkoxy, fluoro or chloro; R.sub.3 is chloro, bromo or lower alkoxy; R.sub.1 and R.sub.2 when taken together are alky lenedioxy of one to two carbon atoms; intermediates therefor and the pharmaceutically-acceptable cationic salts thereof; and their use as anti-allergy agents.
一系列新的N-(5-四唑基)-1-氧代-1H-6-烷氧基嘧啶并[1,2-a]喹啉-2-羧酰胺化合物,其化学式为##STR1## 在该式中,R.sub.1和R.sub.2中的每一个都是氢、低烷基、低烷氧基、氟或氯;R.sub.3是氯、溴或低烷氧基;当R.sub.1和R.sub.2一起取时,它们是一到两个碳原子的烷基二氧化物;以及其中间体和药学上可接受的阳离子盐;以及它们作为抗过敏剂的用途。