Abietane Quinones from Rabdosia serra

摘要

A new abietane quinone diterpenoid was isolated. together with horminone. 16- acetoxy-7-0-acetyhorminone. β-sitosterol. stigmasterol. ursolic acid and palmitic acid from the leaves of Rabdosia Serra MAXLM. Hara. The new compound was elucidated as 16-acetoxy- 7α-ethoxyroyleanone.