Compounds having the formula I: ##STR1## are antagonists of leukotrienes of C.sub.4, D.sub.4 and E.sub.4, the slow reacting substance of anaphylaxis. These compounds are useful as anti-asthmatic, anti-allergic and anti-inflammatory agents.
具有以下
化学式的化合物 I:##STR1## 是C.sub.4、D.sub.4和E.sub.4
白三烯的拮抗剂,也是过敏性反应中的缓慢反应物质的拮抗剂。这些化合物可用作抗哮喘、抗过敏和抗炎药物。