Total synthesis of cucurbitoside-like phenolic glycosides by double fluorous and acyl mixture synthesis
作者:Masaru Kojima、Yutaka Nakamura、Kazuki Komori、Shoji Akai、Ken-ichi Sato、Seiji Takeuchi
DOI:10.1016/j.tet.2011.08.087
日期:2011.10
The first and simultaneous total syntheses of cucurbitosides A, B, G, and I, seguinosides C and D, and two unnatural analogs were achieved using the technique of fluorous mixture synthesis. The eight precursors of cucurbitoside-like phenolic glycosides were prepared by glycosylation of a mixture of two glucopyranosyl acceptors bearing different fluorous benzyl groups with a mixture of four apiofuranosyl
使用氟混合物合成技术,完成了葫芦科糖苷A,B,G和I,芥子苷C和D以及两种非天然类似物的首次和同时的全合成。通过将两个带有不同氟苄基的吡喃葡萄糖基受体的混合物与四个带有苯甲酰基,3-甲基丁酰基,4-苄氧基苯甲酰基和4-硝基苯甲酰基的apiofuranosyl供体的混合物进行糖基化反应,制备八种葫芦糖苷样酚苷的前体。通过HPLC与串联连接Fluophase单次运行® RP和的Inertsil ® ODS-3柱。最后,将各个纯的二糖前体脱标签,以产生八种葫芦科样酚醛糖苷。