CHALCONE DERIVATIVES AND DRUGS CONTAINING THE SAME

摘要

Chalcone derivatives of general formula (1) or salts thereof; and drugs containing the same as the active ingredient (wherein A is phenyl, quinolyl or the like; W is vinylene or the like; and R<1> to R<5> are each carboxyl, cyano, alkyloxycarbonyl or the like). The compounds exhibit an excellent antagonism against cys-LT receptors and are useful as antiallergic agents or the like.