The invention relates to the R-enantiomer of N-carbamoylmethyl-4-phenyl-2-pyrrolidinone (R-Carphedon) of pharmacological value. The method of its preparation includes the N-alkylation of 4(R)-phenyl-2-pyrrolidinone with ethyl bromoacetate in the presence of a strong base and the treatment of intermediate N-ethoxycarbonylmethyl-4(R)-phenyl-2-pyrrolidinone with ammonia.
本发明涉及药物价值的N-
氨甲基-4-苯基-2-
吡咯酮的R-对映体(R-Carphedon)。其制备方法包括在强碱存在下用乙
溴乙酸酯对4(R)-苯基-2-
吡咯酮进行N-烷基化,以及用
氨处理中间体N-乙氧羰基甲基-4(R)-苯基-2-
吡咯酮。