Quinoline derivatives and their use as anti-asthmatic agents
申请人:Fisons plc
公开号:US04698345A1
公开(公告)日:1987-10-06
There are provided benzopyrans of formula I, ##STR1## wherein the substituents, R.sub.5 -R.sub.8 and EA are as defined in the specification. These compounds are useful as anti-asthmatic agents.