Compounds having the formula: ##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, anti-inflammatory and cytoprotective agents.
具有以下
化学式的化合物:##STR1## 是C.sub.4,D.sub.4和E.sub.4
白三烯的拮抗剂,也是过敏反应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、抗炎和细胞保护剂。