Two new benzochromone glycosides from the stem of Berchemiaracemosa

Abstract

Two new benzochromone glycosides, rubrofusarin 6-O-α-L-rhamnosyl- (1 → 6)-O-β-D-glucopyranoside (1) and demethylflavasperone 10-O-β-D-glucopyranoside (2), have been isolated from the stem of Berchemia racemosa Sieb. et Zucc. (Rhamnaceae). Their structures were elucidated on the basis of spectroscopic evidence.

Keywords:

• Berchemia racemosa
• Rhamnaceae
• Benzochromone glycosides
• Rubrofusarin 6-O-α-L-rhamnosyl-(1 → 6)-O-β-D-glucopyranside
• Demethylflavasperone 10-O-β-D-glucopyranoside