Prolineamide derivatives as enhancers of learning processes and memory and pharmaceutical compositions containing same
申请人:Sigma-Tau Industrie
Farmaceutiche Riunite S.p.A.
公开号:EP0541497A1
公开(公告)日:1993-05-12
Prolinamides of formula (1)
wherein R is hydrogen, R₁ is a straight or branched C₂-C₅ alkyl group, ω-substituted with a hydroxyl or carboxyl group optionally esterified with a C₂-C₅ alkanol, or an amino group substituted with one or two straight or branched C₂-C₅ alkyl groups or an amino acid residue, or a 5- or 6- membered heterocyclic group wherein the heteroatom is sulphur or nitrogen, or R and R₁ taken together form a rin of formula
wherein R₃ is a phenyl group optionally substituted with halogens or halogen-substituted lower C₁-C₄ alkyl groups, and R₂ is hydrogen, benzyloxycarbonyl or formyl, are potent enhancers of learning and memory processes.
公式(1)中的Prolinamides,其中R为氢,R₁为直链或支链C₂-C₅烷基,ω-取代基为羟基或羧基,可选择与C₂-C₅烷醇酯化,或者为一个或两个直链或支链C₂-C₅烷基或氨基酸残基取代的氨基基团,或者为一个含有硫或氮杂原子的5-或6-环杂环基团,或者R和R₁结合形成一个环,其中R₃为苯基,可选择取代卤素或卤素取代的较低C₁-C₄烷基,R₂为氢,苄氧羰基或甲酰基,是学习和记忆过程的有效增强剂。