作者:Shou-Fu Lu、QinQin O'yang、Zhong-Wu Guo、Biao Yu、Yong-Zheng Hui
DOI:10.1021/jo9711450
日期:1997.11.1
Tricolorin A (1), a structurally amazing resin glycoside with promising bioactivities from Ipomoea tricolor cav. (convolvulaceae), was synthesized in a total of 45 steps, with the longest linear sequence of 20 steps and overall yield of 0.65% from D-mannitol. The AB disaccharide 19-membered lactone 2 was constructured by a regioselective macrolactonization using Corey-Nicolaou protocol. The macrolactone
Tricolorin A(1),一种结构惊人的树脂糖苷,具有来自五花豆的潜在生物活性。(旋花科)以总共45步合成,最长的线性序列为20步,D-甘露醇的总收率为0.65%。通过使用Corey-Nicolaou方案的区域选择性大内酰胺化来构建AB二糖19元内酯2。大内酯四糖33通过“一锅两步”糖基化方法或通过采用“武装-解除武装”糖基化策略的逐步组装来实现。