Concise General Synthesis of .alpha.,.gamma.-Disubstituted .beta.-Amino Ketones from .beta.-Lactams
摘要:
alpha,gamma-Disubstituted beta-amino ketones were obtained by ring opening of 3,4-disubstituted N-Boc-beta-lactams, promoted by Grignard and organocuprate reagents.
Concise General Synthesis of .alpha.,.gamma.-Disubstituted .beta.-Amino Ketones from .beta.-Lactams
摘要:
alpha,gamma-Disubstituted beta-amino ketones were obtained by ring opening of 3,4-disubstituted N-Boc-beta-lactams, promoted by Grignard and organocuprate reagents.
A route to dipeptides containing β-amino-α-hydroxy acid fragments by coupling of N-boc-β-lactams with α-amino esters. Application to the synthesis of (–)-bestatin
作者:Claudio Palomo、Jesús M Aizpurua、Carmen Cuevas
DOI:10.1039/c39940001957
日期:——
α-Amino esters are smoothly acylated by N-Boc-3-alkoxy-4-alkyl-β-lactams in DMF under the influence of sodium azide, giving a novel dipeptide coupling reaction.