名称:
Diastereoselective synthesis of (−)-1-methyl-(3S,4R)-3,4-bis((2S)-N-(tert-butyloxycarbonyl)pyrrolidin-2-yl)-2-pyrrolidinone by an asymmetric Michael reaction
摘要:
Beginning with enantiomerically pure L-proline, (-)-1-methyl-(3S,4R)-3,4-bis((2S)-N-(tert-butyloxy- carbonyl)pyrrolidin-2-yl)-2-pyrrolidinone was prepared in diastereomerically pure form. Taking advantage of the chiral induction of the L-proline derivatives, the intermolecular Michael reaction, used to build the pyrrolidinone ring, was carried out stereoselectively. (C) 1998 Elsevier Science Ltd. All rights reserved.