Benzopyrans and use thereof in treating vascular diseases
申请人:Zyma SA
公开号:US04814346A1
公开(公告)日:1989-03-21
Isoflavans of the formula I ##STR1## wherein the groups OR, R', R" and ring B are as defined in the specification, exhibit valuable pharmacological properties, especially for the treatment of vascular diseases. They are prepared by methods known per se.