Synthesis of non-proteinogenic amino acids from N-(4-toluenesulfonyl)dehydroamino acid derivatives
摘要:
By treating N-(4-toluenesulfonyl)-N-(tert-butyloxycarbonyl)-dehydroamino acid derivatives with different reactants under different conditions, a variety of new amino acids are obtained, viz. (i) alpha-alcoxy-alpha-amino acids, (ii) alpha,alpha-diamino acids and (iii) novel beta-substituted dehydroamino acids. (C) 2002 Elsevier Science Ltd. All rights reserved.
Synthesis of non-proteinogenic amino acids from N-(4-toluenesulfonyl)dehydroamino acid derivatives
作者:Paula M.T. Ferreira、Hernâni L.S. Maia、Luı́s S. Monteiro
DOI:10.1016/s0040-4039(02)00811-0
日期:2002.6
By treating N-(4-toluenesulfonyl)-N-(tert-butyloxycarbonyl)-dehydroamino acid derivatives with different reactants under different conditions, a variety of new amino acids are obtained, viz. (i) alpha-alcoxy-alpha-amino acids, (ii) alpha,alpha-diamino acids and (iii) novel beta-substituted dehydroamino acids. (C) 2002 Elsevier Science Ltd. All rights reserved.
Synthesis of Novel Amino Acids and Dehydroamino Acids Containing the Benzo[b]thiophene Moiety
作者:Ana S. Abreu、Natália O. Silva、Paula M. T. Ferreira、Maria-João R. P. Queiroz
DOI:10.1002/ejoc.200390212
日期:2003.4
Several novel amino acids and dehydroamino acids containing the benzo[b]thiophene moiety were prepared by Michael addition or sequential Michael addition and palladium-catalyzed C−C or C−N cross couplings. The substrates for Michael addition were the methyl esters of N,N-bis(tert-butyloxycarbonyl)dehydroalanine [Boc2−ΔAla−OMe] and N-(4-toluenesulfonyl)-N-(tert-butyloxycarbonyl)dehydroalanine [Tos−ΔAla(N-Boc)−OMe]