作者:María B. Comba、Alejandra G. Suárez、Ariel M. Sarotti、María I. Mangione、Rolando A. Spanevello、Enrique D. V. Giordano
DOI:10.1021/acs.orglett.6b00428
日期:2016.4.15
An efficient and straightforward synthesis of a novel 3-thiomannoside derivative (1,2,4,6-tetra-O-acetyl-3-S-acetyl-3-thio-β-d-mannopyranoside) was developed starting from levoglucosenone. A xanthate–thiocarbonate exchange under acidic conditions was the key step for the new C–S bond. The product was obtained enantiospecifically in very good overall yield.
从左葡糖醛酮开始开发了新型3-硫代甘露糖苷衍生物(1,2,4,6-四-O-乙酰基-3- S-乙酰基-3-硫代-β - d-甘露吡喃糖苷)的有效而直接的合成方法。在酸性条件下黄原酸酯-硫代碳酸酯的交换是新的CS键的关键步骤。以非常好的总产率对映体特异性地获得了产物。