DAMMARANE TRITERPENE, FLAVONE GLYCOSIDES FROM THE STEMS AND LEAVES OF CHISOCHETON PANICULATUS HIERN (MELIACEAE)

Abstract

Background: Chisocheton Blume is the second largest genus in the Meliaceae family. In Viet Nam, this genus consists of three species including C. ceramicus, C. paniculatus and C. patens. As part of the continuing studies of C. paniculatus, we report herein the isolation and structural determination of one triterpenoid and two flavonoids from the stems and leaves of this species. Materials and method: The stems and leaves of C. paniculatus were collected from Vinh Linh district, Quang Tri province in August 2017. Compounds were islated by using various chromatographic methods. Their structures were determined by NMR spectroscopic method. Results and Conclusion: Dammara-20,24-dien-3b-ol (1), quercetin-3-O-α-L-rhamnopyranoside (2) and kaempferol-3-O-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranoside (3) were isolated and determined from the stems and leaves of C. paniculatus. Among these, compound 1 was isolated from the Chisocheton genus for the first time. Key words: Meliaceae, Chisocheton paniculatus, dammara-20,24-dien-3b-ol, quercetin-3-O-α-Lrhamnopyranoside, kaempferol-3-O-α-L-rhamnopyranosyl-(1→6)-β-d-glucopyranoside