Practical Synthesis of the Bicyclic Darunavir Side Chain: (3<i>R</i>,3a<i>S</i>,6a<i>R</i>)-Hexahydrofuro[2,3-<i>b</i>]furan-3-ol from Monopotassium Isocitrate
作者:Gary L. Moore、Rodger W. Stringham、David S. Teager、Tai-Yuen Yue
DOI:10.1021/acs.oprd.6b00377
日期:2017.1.20
A practical synthesis of (3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-ol—a key intermediate in the synthesis of darunavir—from monopotassium isocitrate is described. The isocitric acid salt, obtained from a high-yielding fermentation fed by sunflower oil, was converted in several steps to a tertiary amide. This amide, along with the compound’s ester functionalities, was reduced with lithium aluminum hydride
描述了从异柠檬酸单钾实际合成(3 R,3a S,6a R)-六氢呋喃[2,3 - b ]呋喃-3-醇-darunavir合成的关键中间体。从葵花籽油进料的高产发酵中获得的异柠檬酸盐经数步转化为叔酰胺。该酰胺以及该化合物的酯官能团,用氢化铝锂还原,经酸性处理后得到瞬态氨基三醇。这是原位转换的标题化合物中,地那那韦的双环缩醛呋喃醇侧链是一种用于治疗HIV / AIDS的蛋白酶抑制剂。该方法成功的关键是确定一种最佳的酰胺,该酰胺可以完成反应并成功分离出产物。N-甲基苯胺酰胺被认为是最合适的底物,用于还原和随后环化为所需产物。因此,侧链由异柠檬酸单钾以55%的总产率产生。