ISOLATION AND STRUCTURAL IDENTIFICATION OF TRITERPENE COMPOUNDS FROM THE LEAVES OF RUBUS ANNAMENSIS CARDOT COLLECTED IN LAM DONG PROVINCE

Abstract

From the leaves of Rubus annamensis Cardot collected in Lam Dong Province, two triterpene compounds were isolated and identified as niga-ichigoside F1 (2α,3β,19α,23-tetrahydroxy-urs-12-en-28-oic acid-β-D-glucopyranosyl ester) and ursolic acid (3-beta-3-hydroxy-urs-12-ene-28-oic acid) by using chromatographic and spectroscopic methods (IR, 1H-NMR, 13C-NMR, DEPT, HSQC, HMBC, and ESI-MS). This is the first time these compounds have been isolated from Rubus annamensis.

Keywords

• Niga-ichigoside F1
• Rubus annamensis
• Ursolic acid.