An aminopropylidene derivative having excellent histamine receptor antagonistic action, a compound which is useful as a pharmaceutical composition, especially as an active ingredient, having alleviated side effects in the central nervous system is described. In the aminopropylidene derivative, R
1
and R
2
, which may be identical or different, stand for a hydrogen, a substituted carbonyl, a substituted carbonylalkyl, and acrylic acid, excluding a case where both are hydrogen; R
3
and R
4
, which may be identical or different, stand for hydrogen, an alkyl which may be substituted with phenyl, or the like; A stands for unsubstituted or an oxo; B stands for a carbon or an oxygen; one of X and Y stands for a carbon and the other stands for a sulfur, a broken line part stands for a single bond or a double bond, and a wavy line stands for cis-form and/or trans-form.
描述了一种具有出色的
组胺受体拮抗作用的
氨基
丙烯酰衍
生物,该化合物可用作制药组合物,特别是作为活性成分,具有减轻中枢神经系统副作用的作用。在
氨基
丙烯酰衍
生物中,R1和R2可以相同或不同,代表氢、取代的羰基、取代的羰基烷基和
丙烯酸,不包括两者都是氢的情况;R3和R4可以相同或不同,代表氢、可以用苯基等取代的烷基;A代表未取代或氧代;B代表碳或氧;X和Y中的一个代表碳,另一个代表
硫,断线部分代表单键或双键,波浪线代表顺式和/或反式。