作者:Soraya Manaviazar、Mark Frigerio、Gurpreet S. Bhatia、Marc G. Hummersone、Abil E. Aliev、Karl J. Hale
DOI:10.1021/ol061626i
日期:2006.9.1
A new enantioselective synthesis of Masamune's AB fragment (1) for bryostatin 7 is described. Key steps in the new route include a Meerwein-Ponndorf-Verley reduction to set the O(7) stereocenter and an alkylative union between the dithiane 6 and iodide 5 to construct the C(9)-C(10) bond. Because we have previously published a synthesis of Masamune's C-ring phenyl sulfone 2, our new route to 1 constitutes
描述了新的Masamune的AB片段(1)对bryostatin 7的对映选择性合成。新路线中的关键步骤包括Meerwein-Ponndorf-Verley还原以设置O(7)立体中心,以及在二噻吩6和碘化物5之间形成C(9)-C(10)键的烷基键合。因为我们之前已经发表过Masamune的C环苯基砜2的合成方法,所以我们新的1路线构成了bryostatin 7的正式总合成;它还可以校正先前报告的CDCl3中1的光谱数据。