Substituted 2-vinyl-chromones and process for their preparation
申请人:Carlo Erba S. p. A.
公开号:US04143145A1
公开(公告)日:1979-03-06
Substituted 2-vinyl chromones are disclosed wherein the chromone ring has an alkoxy or alkenyloxy substituent in the 3 position. The compounds exhibit anti-allergy activity and can be used to treat allergic conditions.