Total Synthesis, Configuration Assignment, and Cytotoxic Activity Evaluation of Protulactone A
作者:Martin Markovič、Peter Koóš、Tomáš Čarný、Saskia Sokoliová、Nikola Boháčiková、Ján Moncol′、Tibor Gracza
DOI:10.1021/acs.jnatprod.7b00212
日期:2017.5.26
The first total synthesis and absolute configuration assignment of protulactone A (1) has been achieved. Four stereoisomers, 1a, ent-1a, 1b, and ent-1b, of this natural polyketide were prepared by chiral pool synthesis starting from l- and d-arabinose, respectively. The absolute and relative configurations of all isomers were assigned by single-crystal X-ray analysis. Target compounds were screened
已经实现了丙内酯A(1)的第一个全合成和绝对构型分配。通过手性库合成分别从1-和d-阿拉伯糖开始制备该天然聚酮化合物的四种立体异构体1a,ent - 1a,1b和ent - 1b。通过单晶X射线分析确定所有异构体的绝对和相对构型。筛选目标化合物对某些人肿瘤细胞的体外细胞毒性(NCI 60癌细胞系)。