Iron-catalyzed cross-coupling between C-bromo mannopyranoside derivatives and a vinyl Grignard reagent: toward the synthesis of the C31–C52 fragment of amphidinol 3
作者:Charlélie Bensoussan、Nicolas Rival、Gilles Hanquet、Françoise Colobert、Sébastien Reymond、Janine Cossy
DOI:10.1016/j.tet.2013.05.067
日期:2013.9
A chemo- and diastereoselective iron-catalyzed cross-coupling between C-bromo mannopyranoside derivatives and 2-methyl-1-propenylmagnesium bromide was developed. This method was used as the key step for the synthesis of the mirror image of the C31–C40 and C43–C52 fragments of amphidinol 3 (AM3). These syntheses were achieved from a common trans-tetrahydropyran derived from d-mannose.
研究了C-溴甘露吡喃糖苷衍生物与2-甲基-1-丙烯基溴化镁之间化学和非对映选择性铁催化的交叉偶联。该方法被用作合成两性酚3(AM3)的C31–C40和C43–C52片段的镜像的关键步骤。这些合成是由衍生自d-甘露糖的普通反式-四氢吡喃实现的。