作者:Caizhu Chang、Jialin Geng、Yuguo Du、Qingwei Lv、ZhiBing Dong、Jun Liu
DOI:10.1016/j.tet.2019.06.015
日期:2019.7
Stereoselective total synthesis of aspinolides B, E and J, naturally occurring 10-membered lactones, were accomplished by divergent strategies starting from the commercially available 2,3-O-isopropylidene-d-ribose and methyl d-lactate. The synthesis features rapid access to the both key fragments from chiral pool and the formation of 10-membered ring lactones containing trans double bond employing
aspinolides B,E和J的立体选择性全合成,天然存在的10-元内酯,通过发散策略由市售2,3-开始完成ö异亚丙基d -核糖和甲基d -乳。合成的特点是可以快速地从手性库中获得两个关键片段,并利用交叉复分解反应(CM)和分子内Shiina大内酯化作用形成含有反式双键的10元环内酯。