作者:Ian Paterson、Tanya Paquet
DOI:10.1021/ol100693c
日期:2010.5.7
configurational assignment of the cytotoxic marine macrolide phorbaside A has been verified by the stereodefined synthesis of the proposed structure 1 and its (18S,19R)-diastereomer 3, followed by correlation using circular dichroism spectroscopy. This first total synthesis, which proceeds in 8.2% yield over 23 steps, features two 1,4-syn boron aldol reactions, a Sonogashira coupling, and an α-glycosylation to append
细胞毒性海洋大环内酯佛波糖苷A的构型分配已通过拟议结构1及其(18 S,19 R)-非对映异构体3的立体定义合成以及随后使用圆二色谱的相关性进行了验证。该第一个总合成过程以23个步骤的收率为8.2%进行,具有两个1,4-顺硼醛羟醛反应,Sonogashira偶联和α-糖基化以附加1-戊糖部分的特点。