作者:Xavier Guinchard、Emmanuel Roulland
DOI:10.1021/ol902047z
日期:2009.10.15
A concise total synthesis of the very promising antiproliferative macrolide (+)-neopeltolide (1) has been performed in 16 steps. The main steps of this approach are a RuII-catalyzed alkyne−enal coupling, a Pd0-catalyzed desulfurative cross-coupling, and a stereoselective InIII-catalyzed propargylation. Four stereogenic centers out of six have been set thanks to substrate-controlled diastereoselective
16个步骤完成了非常有前途的抗增殖大环内酯(+)-新邻苯内酯(1)的简明全合成。该方法的主要步骤是Ru II催化的炔-烯偶联,Pd 0催化的脱硫交叉偶联和立体选择性In III催化的炔丙基化。由于受底物控制的非对映选择性反应且对保护基的依赖性最小,因此已建立了六个立体定位中心中的四个。