This invention relates to chalcone derivatives represented by the following formula (1): wherein A represents a phenyl group, a quinolyl group or the like, W represents a vinylene group or the like, and R.sup.1 to R.sup.5 each independently represent a carboxyl, cyano, alkyloxycarbonyl or like group, or salts of the chalcone derivatives, and also to drugs containing them as effective ingredients. These compounds have excellent cys-LT receptor antagonism, and are useful as antiallergic agents or the like.
这项发明涉及以下式(1)所代表的葵花素衍
生物:其中A代表苯基、
喹啉基或类似物,W代表
乙烯基或类似物,R.sup.1至R.sup.5分别独立代表羧基、
氰基、烷氧羰基或类似基团,或葵花素衍
生物的盐,以及含有它们作为有效成分的药物。这些化合物具有优异的cys-LT受体拮抗作用,可用作抗过敏药物等。