J Integr Plant Biol. ›› 1990, Vol. 32 ›› Issue (4): -.

• Research Articles •    

Study on the Diterpenoids of Rabdosia coetsa

Chen Yi-ping, Sun Han-dong and Lin Zhong-wen   

Abstract: A new diterpene, rabdocoetsin D (1) was isolated from the ethereal extract of the leaves of Rabdosia coetsa (Buch-Ham, ex, D. Don) Hara (Labiatae) collected in Sichuan, China. Its strueture was established as lα, 7β-dihydroxy-llβ-acetoxy-ent-7β, 20-epoxy-kaur-16-en-15-one by spectroscopic and chemical evidence. Three known diterpenoids, rabdocoetsin B and C, rosthorin A were also isolated.

Key words: Diterpenoids, ent-kaurene, rabdocoetsin D, Rabdosia Coetsa

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