Abstract An alternativetotalsynthesis of (−)-galanthamine (1) hydrobromide, employing ecofriendly amidation, oxidative coupling, and classical resolution strategies is accomplished.
Studies on the syntheses of heterocyclic compounds. Part CCCXV. Modified total synthesis of (±)-galanthamine through phenol oxidation
作者:T. Kametani、K. Yamaki、H. Yagi、K. Fukumoto
DOI:10.1039/j39690002602
日期:——
(±)-galanthamine (II) and (±)-epigalanthamine (XXI) in yields of 50 and 40% respectively. Oxidation of (II) with manganese dioxide afforded (±)-narwedine (XIX) This work also constitutes a formal synthesis of (±)-lycoramine.