Stereoselective Synthesis of β-Amino Acids by Aldol-Type Addition
摘要:
A synthesis of alpha-oxygenated beta-amino acid derivatives using an aldol-type addition is described. Depending on the enol equivalent different oxidation states of the oxygen substituent are accessible, while choosing a chiral imine allows to generate the aldol product in a stereoselective manner. This methodology has been applied to the synthesis of the biologically active compound Telaprevir, used in the traetment of hepatitis C.
A new method for the synthesis of N-t-butoxycarbonyl protected α-alkoxy amines from allylamines under neutral conditions
作者:Hisao Nemoto、Hermogenes N. Jimenez、Yoshinori Yamamoto
DOI:10.1039/c39900001304
日期:——
Treatment of the Boc protected allylamines (4) with rhodium catalysts in the presence of alcohols produces N-Boc substituted α-alkoxy amines (5) in high yields, which can be used as a synthetic equivalents of activated imines having an easily deprotectable Boc group.