First Total Synthesis and Structural Confirmation of Fluvirucinine A<sub>2</sub> via an Iterative Ring Expansion Strategy
作者:Yong-Sil Lee、Jong-Wha Jung、Seok-Ho Kim、Jae-Kyung Jung、Seung-Mann Paek、Nam-Jung Kim、Dong-Jo Chang、Jeeyeon Lee、Young-Ger Suh
DOI:10.1021/ol100521v
日期:2010.5.7
The first asymmetric total synthesis of fluvirucinine A2 has been accomplished. A key feature of the synthesis is an iterative lactam ring expansion to provide rapid access to the 14-membered lactam skeleton and three stereogenic centers. The excellent remote control of the three stereogenic centers relied on stereoselective amidoalkylation followed by an amide−enolate-induced aza-Claisen rearrangement
已经完成了第一期不对称的氟维他命A 2的合成。合成的关键特征是迭代的内酰胺环扩展,以提供对14元内酰胺骨架和三个立体异构中心的快速访问。三个立体生成中心的出色的远程控制依赖于立体选择性的酰胺基烷基化,然后进行酰胺-烯醇盐诱导的氮杂-克莱森重排。此外,我们的总合成方法已完全阐明了氟维氨酸A 2的结构。