申请人:Ono Pharmaceutical Co., Ltd
公开号:US04983624A1
公开(公告)日:1991-01-08
A novel prolinal derivative of general formula: ##STR1## [wherein A represents a group of the general formula: ##STR2## (wherein one of R.sup.1 and R.sup.2 represents hydrogen atom and the other represents alkyl group of from 2 to 5 carbon atoms, alkoxy group of from 1 to 5 carbon atom(s), phenyl group, benzyl group, cycloalkyl group of from 4 to 6 carbon atoms or (cycloalkyl group of from 4 to 6 carbon atoms) - methyl group or R.sup.1 and R.sup.2 each represents, same or different, alkyl group of from 1 to 4 carbon atom(s).) or a group of the general formula: ##STR3## (wherein m represents an integer of from 3 to 6.) n represents an integer of from 3 to 10. D represents carbocyclic or heterocyclic ring unsubstituted or substituted by from one to three of halogen atom, nitro group, trifluoromethyl group, alkyl or akloxy group of from 1 to 4 carbon atom(s).] possess inhibitory activity on prolyl endopeptidase, and therefore be useful for treating and/or preventing agent for amnesia.
一种新的prolinal衍生物的通式:##STR1## [其中A代表通式的一组:##STR2## (其中R.sup.1和R.sup.2中的一个代表氢原子,另一个代表碳原子数为2至5的烷基,碳原子数为1至5的烷氧基,苯基,苄基,碳原子数为4至6的环烷基或(碳原子数为4至6的环烷基)-甲基基团或R.sup.1和R.sup.2各自表示相同或不同的碳原子数为1至4的烷基。)或通式的一组:##STR3## (其中m表示3至6的整数。)n表示3至10的整数。D代表未取代或取代了1至3个卤原子,硝基,三氟甲基,碳原子数为1至4的烷基或烷氧基的碳环或杂环。] 具有对脯氨酸内切酶的抑制活性,因此可用于治疗和/或预防失忆症的药物。