申请人:Beecham Group Limited
公开号:US04391815A1
公开(公告)日:1983-07-05
2,2-Dimethyl-3,4-dihydro-2H-benzo[b]pyran-3-ols bearing an amino group in the 4-position and a cyano group in the benzo ring, their salts, esters and ethers, demonstrate excellent vasodilatory activity. The compounds, of which trans-2,2-dimethyl-4-isopropylamino-6-cyano-3,4-dihydro-2H-benzo[b]pyran-3 -ol is a representative embodiment, can be prepared from the corresponding 3,4-epoxy derivative upon treatment with an amine.
4-位氨基和苯环上氰基的2,2-二甲基-3,4-二氢-2H-苯并[b]吡喃-3-醇及其盐、酯和醚具有出色的血管扩张活性。这些化合物可以从相应的3,4-环氧衍生物在胺的处理下制备而成,其中trans-2,2-二甲基-4-异丙基氨基-6-氰基-3,4-二氢-2H-苯并[b]吡喃-3-醇是一个典型的实施例。