TRITERPENOIDS FROM CLEMATOCLETHRA SCANDENS

AIM To investigate the triterpenoids of the roots and stems of Clematoclethra scandens (Franch.) Maxim. METHODS The methanol extracts were suspended in H₂O and then extracted with petroleum ether, EtOAc and n-BuOH, successfully. Column chromatography was used for separation and purification, while spectral evidence was used for structure identification. RESULTS Five triterpenoids were isolated and identified as 2α,3β,24-trihydroxyurs-12,18-dien-28-oic acid-28-O-β-D-glucopyranosyl ester (I), niga-ichigoside F₁ (II), asiatic acid (III), 2α,3α,24-trihydroxyurs-12-en-28-oic acid (IV) and 2α,3α,19α,24-tetrahydroxyurs-12-en-28-oic acid (V). CONCLUSION All compounds were isolated from the plants of this genus for the first time. Among them, I is a new triterpene saponin.