Abstract:

Phytochemical investigation of the leaves of Ilex aspralla (Hook. et Arn.) Champ. ex Benth. led to the isolation of eleven compounds (1-11). By comparison with those reported data in the literatures their structures were identified as kaempferol-3-O-β-D-6′′-acetylglucopyranoside (1), kaempferol-4′-methylether (2), quercetin (3), quercetin-3-O-glucopyranoside (4), tormentoside (5), suavissimoside R₁ (6), 3β,19α-dihydroxyolean-12-ene-24,28-dioicacid-28-O-β-D-glucopyranoside (7), 3-O-β-sulfooxy-19-hydroxy-urs-12-ene-28-oic acid (8), coniferin (9), adenoside (10), 1′-O-benzyl-α-L-rhamnopyranosyl-(1′′→6′)-β-D-glucopyranoside (11). Among these, six compounds (1, 2, 5, 9-11) were firstly reported from the genus Ilex, and five compounds (3, 4, 6-8) were isolated for the first time from Ilex aspralla.

Key words: Ilex asprella, Flavonoids, Sulfated triterpenoid, Triterpenoid saponins, Chemical constituents