The asymmetric Henry reaction as synthetic tool for the preparation of the drugs linezolid and rivaroxaban
作者:Martin Vrbický、Karel Macek、Jaroslav Pochobradský、Jan Svoboda、Miloš Sedlák、Pavel Drabina
DOI:10.3762/bjoc.18.46
日期:——
stereogenic center. The chirality of these drugs is a fundamental attribute for their biological activity. Herein, one of the efficient asymmetric syntheses of these drugs was studied in detail. Highly enantioselective catalysts were tested in the key step of the synthetic procedure, i.e., the asymmetric Henry reaction, under different reaction conditions, using several starting aldehydes. The corresponding
人类药物——抗生素利奈唑胺 ( 1 ) 和抗凝血剂利伐沙班 ( 2 )——属于现代药剂学,它们含有一个带有立体中心的 oxazolidine-2-one 部分。这些药物的手性是其生物活性的基本属性。在此,详细研究了这些药物的一种有效不对称合成。在合成过程的关键步骤,即不对称亨利反应中,在不同的反应条件下,使用几种起始醛对高对映选择性催化剂进行了测试。在这些药物的合成中,作为手性中间体的相应硝基醛醇以高产率和高达 91% ee 的对映体过量获得。