The present invention provides an excellent acetylcholinesterase inhibitor. That is, it provides an acetylcholinesterase inhibitor comprising a 1-benzylpyridinium salt represented by the following formula:
wherein R1, R2, R3 and R4 are the same as or different from each other and each represents a hydrogen atom, a halogen atom, a hydroxyl group, a nitrile group, a C1-6 alkyl group, a C1-6 alkoxy group etc.; R5 represents a hydrogen atom, a halogen atom etc.; the partial structure:
is a group represented by the formula >C(R6)-CH2- (wherein R6 is a hydrogen atom or a halogen atom) or >C=CH-; X- represents a halide ion or organic sulfonic acid ion; and m is 0 or an integer from 1 to 5.
本发明提供了一种优良的
乙酰胆碱酯酶抑制剂。 其中 R1、R2、R3 和 R4 相互相同或不同,各自代表氢原子、卤素原子、羟基、腈基、C1-6 烷基、C1-6 烷氧基等;R5 代表氢原子、卤素原子等。 部分结构:是由式 >C(R6)-
CH2-(其中 R6 是氢原子或卤素原子)或 >C=CH- 所代表的基团;X- 代表卤离子或有机
磺酸离子;以及 m 是 0 或 1 至 5 的整数。