A Minor Acylated Triterpenoid Saponin from the Seeds of Pithecellobium dulce †

Abstract

A novel acylated triterpenoid saponin, designated pithecelloside, is isolated from the seeds of Pithecellobium dulce and characterised as 3-O-[α-L-arabinopyranosyl-(1 → 2)-α-L-arabinopyranosyl-(1 → 6)-β-D-glucopyranosyl]-21β-O-[(2'E)-6'-hydroxy-2’,6'-dimethylocta-2’,7'-dienoyl]acacic acid 1.