harpullia/triterpenoid

Three new triterpenoid saponins have been isolated from the stem bark of Harpullia austro-caledonica and identified as 24-O-[alpha-L-rhamnopyranosyl-(1->2)-beta-D-glucopyranosyl]-28-O-[beta-D-glucopyranosyl-(1->2)-beta-D-glucopyranosyl]-protoaescigenin,

Eight new acylated triterpenoid saponins were isolated from the stem bark of Harpullia austro-caledonica along with the known harpuloside (9). Their structures were established using 1D and 2D NMR and mass spectrometry as 3-O-beta-D-galactopyranosyl-(1-->2)-beta-D-glucuronopyranosyl-21 beta, 22

A new norhopane triterpenoid, 3beta-eicosanoyl-6beta-hydroxy-21alphaH-24-norhopan-4(23),22(29)-diene (1), was isolated from the leaves of Harpullia arborea. The structure of the compound was determined by spectroscopic methods.