Design, Total Synthesis, and Evaluation of C(13)−C(14) Cyclopropane Analogues of (+)-Discodermolide
作者:Amos B. Smith、Ming Xian、Fenghua Liu
DOI:10.1021/ol051691c
日期:2005.10.1
[structure: see text] The design, total synthesis, and biological evaluation of two C13-C14-cyclopropyl analogues [(+)-1 and (+)-2] of (+)-discodermolide have been achieved. Key features of the syntheses include highly stereoselective, hydroxyl-directed cyclopropanations of vinyl iodides and higher order cuprate-mediated cross-coupling reactions between cyclopropyl iodides and alkyl iodides. Biological
[结构:见正文]已完成(+)-discodermolide的两个C13-C14-环丙基类似物[(+)-1和(+)-2]的设计,全合成和生物学评估。合成的关键特征包括乙烯基碘化物的高度立体选择性,羟基定向的环丙烷化以及环丙基碘化物和烷基碘化物之间的高阶铜酸盐介导的交叉偶联反应。生物学评估表明,环丙基亚甲基的取向都不能完全替代(+)-discodemolide(3)中的C14甲基。