A Formal Synthesis of (−)-Perhydrohistrionicotoxin Using a Cross Metathesis–Hydrogenation Approach
作者:Nicolas D. Spiccia、James Burnley、Kamani Subasinghe、Christopher Perry、Laurent Lefort、W. Roy Jackson、Andrea J. Robinson
DOI:10.1021/acs.joc.7b01257
日期:2017.8.18
development of an efficient, high yielding six-step convergent synthesis of the semisynthetic alkaloid (−)-perhydrohistrionicotoxin is described. The key transformations include the cross metathesis of a Brønsted-acid masked primary homoallylic amine with a vinyl cyclohexenone and a regioselective palladium catalyzed hydrogenation. This sequence generated the advanced Winterfeldt spirocyclic precursor in 47%