作者:Yinan Zhang、Jianjun Zhang、Larissa V. Ponomareva、Zheng Cui、Steven G. Van Lanen、Jon S. Thorson
DOI:10.1021/jacs.9b13766
日期:2020.5.20
Stereoselective 2'- and 3'-reduction of key spectinomycin-derived intermediates ena-bled facile access to all eight possible 2,3-stereoisomers of 4,6-dideoxyhexoses as well as representative 3,4,6-trideoxysugars and 3,4,6-trideoxy-3-aminohexoses. In addition, the method was applied to the synthesis of two function-alized sugars commonly associated with macrolide antibiotics - the 3-O-alkyl-4,6-dideoxysugar
描述了一种有效的发散合成策略,它利用天然产物壮观霉素来获得独特的功能化单糖。对壮观霉素衍生的关键中间体进行立体选择性 2'- 和 3'-还原,可以轻松获得 4,6-双脱氧己糖的所有八种可能的 2,3-立体异构体以及代表性的 3,4,6-三脱氧糖和 3,4 ,6-trideoxy-3-aminohexoses。此外,该方法还用于合成两种通常与大环内酯类抗生素相关的功能化糖——3-O-烷基-4,6-二脱氧糖 D-chalose 和 3-N-烷基-3,4,6 -脱氧糖 D-脱糖胺。