Terpenoids from aerial parts of Gendarussa vulgaris / 中草药

ABSTRACT

Objective: To isolate and identify the terpenoids from the aerial parts of Gendarussa vulgaris. Methods: The 95% EtOH extract of the aerial parts of G. vulgaris were isolated and purified by silica gel, Sephadex LH-20, reversed-phase ODS, macroporous adsorption resin AB-8 and semi-preparative high performance liquid chromatography. The compound structures were identified by physicochemical properties and spectroscopic data. Results: Ten terpenoids were identified as gvterpennoid A (1), 4,4,14α- trimethylpregn-8-en-3β,20α-diol (2), betulone (3), ergosterol endoperoxide (4), ursolic acid (5), oleanolic acid (6), 3β-hydroxyl- 11α,12α-epoxy olean-28,13β-lactone (7), sweroside (8), loganin (9), and dehydromorroniaglycone (10). Conclusion: Compound 1 is a new triterpene, named gvterpennoid A. Compound 2 is a new natural product, and its 13C- and 1H-NMR chemical shifts were first completely assigned on the basis of 1D and 2D NMR spectroscopic evidence. Compounds 3-5, 7-10 are isolated from Gendarussa genus for the first time.