Abstract

Two lupin saponins, 3?,21?,22?, 24-tetrahydroxyolean-12-en-3-O-?-L-rhamnopyranosyl-(1?2) -?-D-galactopyranosyl-(1?2) -?-D-glucuronopyranosyl-21-O-?-L-arabinopyranoside, and 3?,21?,22?, 24-tetrahydroxyolean-12-en-3-O-?-D-galactopyranosyl-(1?2) -?-D-glucuronopyranosyl-21-O-?-L-rhamnopyranoside, along with eight other saponins and one triterpene previously reported from other legumes, were isolated from the aerial parts of Lupinus oreophilus collected in northern Chile. The structures of the isolated compounds were established with the help of extensive spectroscopic techniques. © 2003 Elsevier Ltd. All rights reserved.