Two-directional synthesis. Part 1: A short formal synthesis of (±)-histrionicotoxin and (±)-histrionicotoxin 235A
作者:Robert A Stockman
DOI:10.1016/s0040-4039(00)01640-3
日期:2000.11
The formal synthesis of (±)-histrionicotoxin and (±)-histrionicotoxin 235A using a two-directional strategy has been accomplished. The key feature of the synthesis is a tandem oxime formation/Michael addition/nitrone cycloaddition sequence, which form the azaspiro[5.5]undecane skeleton in two operations from an acyclic symmetrical precursor.