Enantioselective synthesis of α,β-unsaturated γ- and δ-lactams
摘要:
An enantioselective synthesis of alpha,beta -unsaturated gamma- and delta -lactams was proposed based on a simple strategy using the initial preparation of c is vinylogous aminoesters by the Horner reaction followed by a mild intramolecular cyclisation. (C) 2001 Elsevier Science Ltd. All rights reserved.
A trans or cis ethenyl group has been inserted between the α-carbon and the carboxyl group of α-aminoacids by Horner stereoselective olefination of α-aminoaldehydes. Numerous pure cis and trans vinylogous α-aminoacids have been obtained thus and coupled with aminopartners by classical methods. The versatility of the method was illustrated by the preparation of a [trans vinylogous-Gly3]Leu-enkephalin
Enantioselective synthesis of α,β-unsaturated γ- and δ-lactams
作者:Claude Grison、Stéphane Genève、Philippe Coutrot
DOI:10.1016/s0040-4039(01)00561-5
日期:2001.6
An enantioselective synthesis of alpha,beta -unsaturated gamma- and delta -lactams was proposed based on a simple strategy using the initial preparation of c is vinylogous aminoesters by the Horner reaction followed by a mild intramolecular cyclisation. (C) 2001 Elsevier Science Ltd. All rights reserved.