Studies on the Constituents of Phytolaccaceous Plants. I1).On the Structures of Phytolaccasaponin B, E and G from the Roots of Phytolacca americana L

Abstract

Phytolaccasaponin B, E and G, the major saponins of Phytolacca americana L. (Phytolaccaceae), have been isolated. The structures of phytolaccasaponin B, E and G have been established to be phytolaccagenin 3-O-[β-D-glucopyranosyl(1-4)-β-D-xylopyranoside]-28-O-β-D-glucopyranoside (4), phytolaccagenin 3-O-[β-D-glucopyranosyl(1-4)-β-D-xylopyranoside(5) and phytolaccagenin 3-0-β-u-xylopyranoside (6), respectively. Phytolaccatoxin reported by Stout, et al. was assumed to be a mixture of more than three saponins, but the main saponin was identified as 5 by thin–layer chromatography. © 1978, The Pharmaceutical Society of Japan. All rights reserved.