申请人:Kirin Beer Kabushiki Kaisha
公开号:US04833156A1
公开(公告)日:1989-05-23
A use of the pyrrolidone derivative represented by the following formula [I] as an anti-amnesitc agent: ##STR1## wherein R represents a group ##STR2## X represents --SO.sub.2 -- or --CO--; R' represents a hydrogen atom, a lower alkyl group, a trifluoromethyl group, a halogen atom or a nitro group; n denotes an integer of 1-5; and, when n is an integer of 2 or more, R' may be the same or different, provided that (a) when X is --SO.sub.2 --, there is no case where R' is 3-CF.sub.3, 4-Cl-5-CF.sub.3, 3,5-(CF.sub.3).sub.2 or 3-NO.sub.2 ; (b) when X is --CO--, there is no case where n denotes 1 or 2 and R' is a halogen atom or a nitro group; (c) when X is --SO.sub.2 --, there is no case where n denotes 1 or 2 and R' is a group other than 4-Cl or 3-NO.sub.2 ; and (d) when n denotes 2, there is no case where the groups R' represent the same group which is halogen atom or a nitro group. Typical pyrrolidone derivatives are N-(4'-toluene-sulfonyl)-2-pyrrolidone, N-(4'-chlorobenzenesulfonyl)-2-pyrrolidone, N-benzenesulfonyl-2-pyrrolidone and N-[4'-(1", 1"-dimethylethyl)benzoyl]-2-pyrrolidone, particularly N-(4'-chloro-benzenesulfonyl)-2-pyrrolidone.
以下是该段文字的中文翻译:
一种以下式[I]所代表的吡咯烷酮衍生物作为抗遗忘剂的用途:##STR1## 其中R代表一个基团##STR2## X代表--SO.sub.2--或--CO--; R'代表氢原子、较低的烷基基团、三氟甲基基团、卤原子或硝基基团;n表示1-5的整数;当n是2或更多时,R'可以相同也可以不同,前提是(a)当X是--SO.sub.2--时,不存在R'为3-CF.sub.3、4-Cl-5-CF.sub.3、3,5-(CF.sub.3).sub.2或3-NO.sub.2的情况;(b)当X是--CO--时,不存在n表示1或2且R'为卤原子或硝基基团的情况;(c)当X是--SO.sub.2--时,不存在n表示1或2且R'为4-Cl或3-NO.sub.2以外的基团的情况;(d)当n表示2时,不存在R'代表相同的基团且为卤原子或硝基基团的情况。典型的吡咯烷酮衍生物包括N-(4'-甲苯磺酰)-2-吡咯烷酮,N-(4'-氯苯磺酰)-2-吡咯烷酮,N-苯磺酰-2-吡咯烷酮和N-[4'-(1", 1"-二甲基乙基)苯甲酰]-2-吡咯烷酮,特别是N-(4'-氯苯磺酰)-2-吡咯烷酮。