Multicomponent diversity and enzymatic enantioselectivity as a route towards both enantiomers of α-amino acids—a model study
摘要:
A model study on a new, enantioconvergent method for the synthesis of chiral, nonracemic alpha-amino acids is presented. alpha-Acetoxyamides obtained in a Passerini multicomponent reaction are selectively hydrolyzed by Wheat Germ lipase. Studies on conversion of the thus obtained, enantiomerically enriched alpha-hydroxyamides into alpha-aminoamides are presented. Products of these reactions are then hydrolyzed to give alpha-amino acids. (c) 2006 Elsevier Ltd. All rights reserved.
Multicomponent diversity and enzymatic enantioselectivity as a route towards both enantiomers of α-amino acids—a model study
摘要:
A model study on a new, enantioconvergent method for the synthesis of chiral, nonracemic alpha-amino acids is presented. alpha-Acetoxyamides obtained in a Passerini multicomponent reaction are selectively hydrolyzed by Wheat Germ lipase. Studies on conversion of the thus obtained, enantiomerically enriched alpha-hydroxyamides into alpha-aminoamides are presented. Products of these reactions are then hydrolyzed to give alpha-amino acids. (c) 2006 Elsevier Ltd. All rights reserved.
A new, efficient method for the multicomponent synthesis of tripeptide mimetics is presented. Simple, chemoenzymatic transformations of Passerini reaction products enable the introduction of varied amino acid moieties into the tripeptide scaffold, with control of the stereochemistry. Additionally, this method allows the convenient introduction of a methyl group to the amide nitrogen, leading to derivatives