A three-component Mannich-type condensation leading to phosphinic dipeptides—extended transition state analogue inhibitors of aminopeptidases
作者:Anna Dziełak、Małgorzata Pawełczak、Artur Mucha
DOI:10.1016/j.tetlet.2011.04.037
日期:2011.6
N-Protected α-aminoalkylphosphinic acids bearing a P–H function were found to be novel practical building blocks in three-component condensations with formaldehyde and secondary amines (amino acids). Such Mannich-type N-phosphonomethylation is a common approach for phosphorus acid derived substrates and leads to multifunctional (phosphonic/amino/carboxylic) compounds of diverse relevance. The utility
N-保护的具有P–H功能的α-氨基烷基次膦酸是甲醛和仲胺(氨基酸)三组分缩合反应中的新型实用组成部分。这种曼尼希型N-膦酰基甲基化是衍生自磷酸的底物的常用方法,并导致具有各种相关性的多功能(膦酸/氨基/羧酸)化合物。在一个合成步骤中,检查了该反应的实用性,以构建先进的次膦膦假二肽,这些次膦酸假二肽可充当所选氨基肽酶的扩展过渡态类似物抑制剂。伯氨基酸的膦酰基甲基化效率较低,会产生分离为单个成分并鉴定其结构的产物混合物。