Enzymatic resolution of N-arylaziridine carboxylates
摘要:
N-Arylaziridine-2-carboxylates have been enzymatically resolved using the lipase from Candida rugosa to afford optically active aziridine carboxylates in moderate to high enantiomeric purity. The absolute configuration of the unknown aziridine carboxylates was assigned as S by chemical correlation. (C) 2003 Elsevier Ltd. All rights reserved.
N-Arylaziridine-2-carboxylates have been enzymatically resolved using the lipase from Candida rugosa to afford optically active aziridine carboxylates in moderate to high enantiomeric purity. The absolute configuration of the unknown aziridine carboxylates was assigned as S by chemical correlation. (C) 2003 Elsevier Ltd. All rights reserved.
A New Strategy for the Synthesis of 1,4-Benzodiazepine Derivatives Based on the Tandem <i>N-</i>Alkylation−Ring Opening−Cyclization Reactions of Methyl 1-Arylaziridine-2-carboxylates with <i>N-</i>[2-Bromomethyl(phenyl)]trifluoroacetamides
作者:Jin-Yuan Wang、Xue-Fei Guo、De-Xiang Wang、Zhi-Tang Huang、Mei-Xiang Wang
DOI:10.1021/jo7024306
日期:2008.3.1
4-benzodiazepine derivatives has been established from a one-pot reaction of methyl 1-arylaziridine-2-carboxylates with N-[2-bromomethyl(aryl)]trifluoroacetamides. The reaction proceeds through the N-benzylation and highly regioselective ring-openingreaction of aziridine by bromide anion followed by Et3N-mediated intramolecular nucleophilicdisplacement of the bromide by the amide nitrogen. The easy availability