A synthesis of 8-epi-kifunensine (2) in optically active form was achieved starting from D-glucose via a modified double cyclization of the oxamide-hemiacetal precursor 9 with 2, 4-dimethoxybenzylamine as a key step.
以
D-葡萄糖为起始原料,通过将
肟-
半缩醛前体9与2,4-二甲氧基
苄胺进行改良的双环化反应,实现了光学活性形式的8-表-基夫宁辛(2)的合成,这是该反应的关键步骤。