申请人:Fisons Limited
公开号:US04474787A1
公开(公告)日:1984-10-02
There are described compounds of formula I ##STR1## in which an adjacent pair of R.sub.5, R.sub.6, R.sub.7 and R.sub.8 form a chain --COCH.dbd.CE--O--, and the remainder of R.sub.5, R.sub.6, R.sub.7 and R.sub.8, which may be the same or different, each represent hydrogen, hydroxy, alkyl, halogen, alkenyl, alkoxy, or --NR.sub.1 R.sub.2 in which R.sub.1 and R.sub.2, which are the same or different, are each hydrogen or alkyl, Rg is hydrogen, alkyl, alkenyl or phenyl-alkyl, and E is --COOH, a 5-tetrazolyl group or an (N-tetrazol-5-yl) carboxamido group, and pharmaceutically acceptable derivatives thereof. There are also described processes for making the compounds and pharmaceutical, e.g. anti-allergic, compositions containing the compounds.
描述了一种公式I的化合物##STR1## 其中相邻的一对R.sub.5、R.sub.6、R.sub.7和R.sub.8形成一个链--COCH.dbd.CE--O--,而R.sub.5、R.sub.6、R.sub.7和R.sub.8的其余部分,可以相同也可以不同,每个部分表示氢、羟基、烷基、卤素、烯基、烷氧基或--NR.sub.1 R.sub.2,其中R.sub.1和R.sub.2相同或不同,分别表示氢或烷基,Rg表示氢、烷基、烯基或苯基-烷基,E表示--COOH、5-四唑基团或(N-五唑基-5-基)羧酰胺基团,以及其药学上可接受的衍生物。还描述了制备这些化合物的方法和含有这些化合物的药物,例如抗过敏组合物。