Assembly intermediates in polyketide biosynthesis: enantioselective syntheses of β-hydroxycarbonyl compounds
作者:Christine Le Sann、Dulce M. Muñoz、Natalie Saunders、Thomas J. Simpson、David I. Smith、Florilène Soulas、Paul Watts、Christine L. Willis
DOI:10.1039/b419492f
日期:——
versatile approach for the enantioselective synthesis of functionalised beta-hydroxy N-acetylcysteamine thiol esters has been developed which allows the facile incorporation of isotopic labels. It has been shown that a remarkable reversal of selectivity occurs in the titanium mediated aldol reaction of acyloxazolidinone using either (S)- or (R)-tert-butyldimethylsilyloxybutanal. The aldol products are valuable
已经开发了用于对映选择性合成官能化的β-羟基N-乙酰半胱胺硫醇酯的通用方法,该方法允许容易地掺入同位素标记。已经显示出在使用(S)-或(R)-叔丁基二甲基甲硅烷基氧基丁醛的钛介导的恶唑烷酮的羟醛缩醛反应中,选择性的显着逆转发生。醛醇缩合产物是合成4-羟基-6-取代的δ-内酯的有价值的中间体。