| 摘要 |
3-acylamino-2-pyrrolidinones of general formula (I) <CHEM> wherein R is selected from pyrrolidin-2-one-1-acetyl, p-methoxybenzoyl, N-benzyloxycarbonyl-(S)-prolyl, phenylbutanoyl, 3-trifluoromethylbenzoyl, 3,4,5-trimethoxybenzoyl, nicotinoyl and acyl having 1-5 carbon atoms; and R1 is selected from hydrogen, methoxycarbonilmethyl, amminocarbonylmethyl, 2-hydroxyethyl and formylmethyl, are potent enhancers of the processes of learning and memory. Orally or parenterally administrable compositions in unit dosage form comprise from about 100 to about 500 mg of a compound of formula (I). |
