Practical synthesis of 4-hydroxy-3-oxobutylphosphonic acid and its evaluation as a bio-isosteric substrate of DHAP aldolase
作者:Hans-Lothar Arth、Wolf-Dieter Fessner
DOI:10.1016/s0008-6215(97)10026-x
日期:1997.12
inexpensive 4-ethoxy-1-hydroxybutane-2-one using an Arbusow reaction (59% overall yield). Several dihydroxyacetone-dependent aldolases having different stereospecificities were tested for their acceptance of this phosphonomethyl substrate mimic as the aldol donor. Individual enzymes belonging to both type I (Schiff base formation) and type II (Zn2+ catalysis) mechanistic classes were found to catalyze
基于廉价的4-乙氧基-1-羟基丁烷-2-酮,使用Arbusow反应(总收率59%)开发出了一种有效的四步合成标题化合物4-羟基-3-氧代丁基膦酸酯(2)的方法。测试了几种具有不同立体特异性的二羟基丙酮依赖性醛缩酶对这种膦酰基甲基底物模拟物作为醛醇供体的接受性。发现属于I型(席夫碱形成)和II型(Zn2 +催化)机理类别的单个酶催化2向简单醛的立体选择性加成,从而以高收率提供糖1磷酸酯的生物立体异构体。关于最新的蛋白质X射线数据,讨论了特定酶缺乏接受性的问题。