J Integr Plant Biol. ›› 1998, Vol. 40 ›› Issue (5): -.

• Research Articles •    

The Chemical Constituents of Rabdosia coetsa

LI Wen-Wu, LI Bo-Gang, DING Li-Sheng and CHEN Yao-Zu   

Abstract: From the leaves of Rabdosia coetsa (Buch.-Ham. ex D. Don) Ham, a new kauranoic acid, coetsanoic acid, along with eight known compounds, dihydrorabdoktmmin C, rabdoktmmin C, albopilosin A, maerocalyxin C, N-2'-hydroxy-eieosanoyl ( henicosanoyl-hexacosanoyl )-4-hydroxy- trans-8-sphingenine,ursolic acid, 2a, 3β-dihydroxyursolie acid and daucosterol has been isolated. Its structure was established as 7a, 12a, 14β-tri-hydroxy-15-oxo-ent-kauran-18-carboxy acid by spectroscopic means. The ceramides were isolated from the plants of Rabdosia for the first time.

Key words: Rabdosia coetsa, Diterpenoid, Coetsanoic acid, Ceramide

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