Pachysandra Alkaloids.V.Structure of Epipachysamine-A, -B, -C, -D, -E, and -F

Abstract

Structure determination of epipachysamine-A(I), -B(VIIIa), -C(III), -D(VIIIb), -E(VIIIc), and -F(V), new alkaloids isolated from Pachysandra terminalis SIEB. et ZUCC. (Buxaceae), was described herewith. Among these alkaloids, epipachysamine-B(VIIIa) is unique in that it has a nicotinamide grouping in the molecule.