Stereoselective synthesis of chiral thiol-containing 1,2-aminoalcohols via SmI2-mediated coupling
作者:Carina Doler、Michael Friess、Florian Lackner、Hansjörg Weber、Roland C. Fischer、Rolf Breinbauer
DOI:10.1016/j.tet.2020.131249
日期:2020.12
The stereoselective synthesis of highly functionalized aminohydroxythiols represents a synthetic challenge as the oxidation sensitivity and coordinating property of the thiol group interferes with many established synthetic methods. The SmI2/LiBr-mediated reductive coupling between Ellman N-sulfinylimines, containing thiol groups protected either as trityl thioether or dihydrothiazolidine, and aldehydes
高度官能化的氨基羟基硫醇的立体选择性合成代表了一项合成挑战,因为硫醇基团的氧化敏感性和配位特性会干扰许多已建立的合成方法。包含被保护为三苯甲基硫醚或二氢噻唑烷的巯基的Ellman N-亚磺酰亚胺基与醛之间的SmI 2 / LiBr介导的还原偶联使得醛类能够以高对映选择性和非对映选择性合成手性氨基羟基硫醇。已经为18个实施例确定了该反应的范围,并将其用于生物合成研究所需的复杂中间体的合成。