Studies on the Neutral Constituents of Pachysandra terminalis SIEB. et ZUCC. V. Structures of Pachysandiol-B and Pachysonol, New Friedelin Type Triterpenes

Abstract

The structures of pachysandiol-B and pachysonol, new friedelin type triterpenes isolated from the neutral fraction of Pachysandra terminalis SIEB. et ZUCC. (Buxaceae), were investigated and assigned to the formulae Ia and IIa, respectively, on the basis of chemical and spectroscopic evidences.