作者:Neil F. Langille、James S. Panek
DOI:10.1021/ol048664r
日期:2004.9.1
[reaction: see text] A convergent enantioselective synthesis of the natural product (-)-callystatin A (1) is described. Key features of the synthesis include a lipase-mediated kinetic resolution to install the C5 lactone stereochemistry, a hydrozirconation-based approach to the C8-C9 trisubstituted (Z)-olefin, and a stereoselective cross-coupling of a vinyl dibromide to install the C14-C15 trisubstituted
[反应:见正文]描述了天然产物(-)-卡利他汀A(1)的收敛对映选择性合成。合成的关键特征包括:脂肪酶介导的动力学拆分,以安装C5内酯立体化学;基于氢化锆化的方法制备C8-C9三取代(Z)-烯烃;以及立体选择性的交叉偶联乙烯基二溴化物,以安装C14 -C 15三取代的(E)-烯烃。