Studies on the Total Synthesis of Disorazole C<sub>1</sub>. An Advanced Macrocycle Intermediate
作者:M. C. Hillier、A. T. Price、A. I. Meyers
DOI:10.1021/jo010249e
日期:2001.9.1
Synthesis of protected tetradehydro-(6,6'-S)-(14,14'-S)-(16,16'-R)-disorazole (3), a potential precursor to the natural product disorazole C1 (1), is described. Key features of this work include (a) an unprecedented sequential 1,5 O --> O silyl rearrangement/Horner-Wadsworth-Emmons reaction used to construct 18, (b) a highly convergent Sonogashira reaction between the dienyl iodide 7 and the alkyne
受保护的四氢-(6,6'-S)-(14,14'-S)-(16,16'-R)-二异唑(3)的合成,这是天然产物二异唑C1(1)的潜在前体,描述。这项工作的关键特征包括:(a)前所未有的连续1,5 O-> O甲硅烷基重排/ Horner-Wadsworth-Emmons反应用于构建18,(b)二烯基碘化物7与炔烃之间的高度收敛的Sonogashira反应8组装二烯炔单体片段5,(c)5的选择性环化,得到环状单体23或二聚体3。