(Pyrrolidin-2-on-l-yl) acetamides as enhancers of learning and memory and pharmaceutical compositions comprising same
申请人:Sigma-Tau Industrie
Farmaceutiche Riunite S.p.A.
公开号:EP0408524A1
公开(公告)日:1991-01-16
(Pyrrolidin-2-one-1-yl)acetamides of general formula (I)
wherein R is hydrogen or hydroxyl, R1 is hydrogen, R2 is selected from the group consisting of: 2-aminoethyl,
2-(N,N-diisopropyl) aminoethyl,
3-(pyrrolidin-2-one-1-yl) propyl,
2-[N-(pyrrolidin-2-one-d1-yl) acetyl] aminoethyl,
2-hydroxyethyl,
(glycerophosphorylethanolamino) carbonylmethyl,
1-trimethylammonium-3-carboxy-2-propyloxy-carbonylmethyl chloride,
(prolinol-1-yl) carbonylmethyl,
1-trimethylammonium-3-carboxyisopropyl), and
3-pyridylcarbamide;
or R1 and R2, taken together, are such as to form a cycle of formula
wherein R3 is selected from the group consisting of phenyl substituted with halogens or halogen-substituted lower (C1-C4) alkyls and 4-morpholinocarbonylmethyl are potent enhancers of learning and memory.
Orally or parenterally administrable pharmaceutical compositions in unit dosage form comprise from about 100 to 500 mg of one of the compound of formula (I).
(通式(I)的(吡咯烷-2-酮-1-基)乙酰胺
其中 R 为氢或羟基,R1 为氢,R2 选自以下组成的组2-氨基乙基
2-(N,N-二异丙基)氨基乙基、
3-(吡咯烷-2-酮-1-基)丙基、
2-[N-(吡咯烷-2-酮-d1-基)乙酰基]氨基乙基、
2-羟乙基
(甘油磷酰乙醇胺)羰基甲基、
1-三甲基-3-羧基-2-丙氧基羰基甲基氯铵、
(prolinol-1-yl) carbonylmethyl、
1-三甲基铵-3-羧基异丙基)和
3-吡啶基甲酰胺;
或 R1 和 R2 合在一起,形成一个式周期
其中 R3 选自由卤素取代的苯基或卤素取代的低级(C1-C4)烷基和 4-吗啉羰基甲基组成的组。
口服或肠外给药的单位剂型药物组合物包括约 100 至 500 毫克的式 (I) 化合物之一。