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作 者 ：Wang Xian-rong,Wang Hong-ping, Wang Su-qing, Shinichi Ueda and Tetsuro Fujita

Keywords:Rabdosia macrocalyx, Ent-kaurenoid, Macrocalyxin B, Macrocalyxin F,

Abstract:Two novel diterpenoids, macrocalyxin B and macrocalyxin F, were isolated from the leaves of Rabdosia rnacrocalyx (Dunn) Hara and their structures were elucidated by spectral and chemical evidences.

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