作者:Guoxia Han、Arwel Lewis、Victor J Hruby
DOI:10.1016/s0040-4039(01)00718-3
日期:2001.7
N-alpha-Fmoc-prptected (1S,3S)-beta -methyltryptophan has been synthesized by asymmetric synthesis through the aid of an oxazolidinone auxillary. Coupling of the mixed anhydride of N-ln-Boc-protected indoleacrylic acid to thr oxazolidinone auxiliary was achieved by lithium bromide and N,N-dimethylpyridine (DMAP). This reaction is milder and more convenient to run than the traditional conditions using: butyl lithium, (C) 2001 Elsevier Science Ltd. All rights reserved.