Nhatrangin A: Total Syntheses of the Proposed Structure and Six of Its Diastereoisomers
作者:Luiz C. Dias、Ellen C. Polo
DOI:10.1021/acs.joc.6b03060
日期:2017.4.21
A total synthesis of the proposed structure of nhatrangin A is described. This strategy relies on two aldol reactions to install the chiral centers at C3/C4 and C3′/C4′, a lithium-mediated coupling between an advanced intermediate alkyne and a Weinreb amide to complete the C1–C13 alkyl scaffold, and a Yamaguchi esterification to set the side chain. Discrepancies in the spectroscopic data between synthetic
描述了拟南芥A结构的全合成。该策略依赖于两个醇醛反应,将手性中心安装在C3 / C4和C3'/ C4'处,高级中间炔烃和Weinreb酰胺之间通过锂介导的偶联完成C1-C13烷基支架,以及山口酯化设置侧链。合成nhatrangin和天然nhatrangin之间的光谱数据差异导致我们合成了nhatrangin A拟议结构的另外六个非对映异构体。