Synthesis of erythrina and related alkaloids. XXII. Intramolecular cyclization approach. 1): New synthetic route to erythrinan and related heterocycles and synthesis of (.+-.)-3-demethoxy-erythratidinone.
Synthesis of erythrina and related alkaloids. XXII. Intramolecular cyclization approach. 1): New synthetic route to erythrinan and related heterocycles and synthesis of (.+-.)-3-demethoxy-erythratidinone.