Chiral approach to total synthesis of phytotoxic and related nonenolides: (Z)-isomer of (6S,7R,9R)-6,7-dihydroxy-9-propylnon-4-eno-9-lactone, herbarumin-III and their C-9 epimers
作者:Lingaiah Maram、Raghavendar Reddy Parigi、Biswanath Das
DOI:10.1016/j.tet.2016.09.052
日期:2016.11
A new and efficient strategy has been developed for the stereoselective total synthesis of nonenolides: (Z)-isomer of (6S,7R,9R)-6,7-dihydroxy-9-propylnon-4-eno-9-lactone, herbarumin-III and their C-9 epimers starting from d (−) ribose. The synthesis includes the coupling of the alcohol and acid fragments of the molecules, employing Yamaguchi esterification protocol followed by intramolecular ring
已开发出一种新的有效策略来立体选择性地合成壬烯酚:(6 S,7 R,9 R)-6,7-二羟基-9-丙基non-4-eno-9-内酯的(Z)异构体,herbarumin-III及其C-9差向异构体从d(-)核糖开始。合成过程包括使用Yamaguchi酯化方案偶联分子中的醇和酸片段,然后进行分子内闭环复分解。该方法有效地构建了化合物的十元内酯骨架,该骨架具有适当的包含适当功能的立体生成中心。