作者:Michel Blitz、Robert C. Heinze、Klaus Harms、Ulrich Koert
DOI:10.1021/acs.orglett.8b04044
日期:2019.2.1
A stereoselective syntheticapproach to the natural product (+)-nivetetracyclate A is reported. The tetracyclic skeleton was assembled in a convergent manner by an alkylation to a diarylmethane and subsequent Friedel–Crafts acylation. Further key steps are an asymmetric Sharpless epoxidation and the boron trifluoride-mediated diastereoselective rearrangement of an epoxy alcohol to a β-hydroxy aldehyde