J Integr Plant Biol. ›› 1994, Vol. 36 ›› Issue (9): -.

• Research Articles •    

Revised Structure of Maoyerabdosin

Wang Xian-rong, Sun Han-dong, Shinichi Ueda and Tetsuro Fujita   

Abstract: Known diterpenoid maoyerabdosin was isolated from the leaves of Rabdosia macrocalysc (Dunn) Hara. Based on elemental analyses and spectra of MS, NMR, COSY and NOESY, the structure of maoyerabdosin was revised as ent-7β-20-epoxy-lα, 7α, 15α, 16α-tetrahydro- xy kaurene-6α, 17-diacetate.

Key words: Rabdosia macrocalyx, Ent-kaurenoids, Maoyerabdosin

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