显脉香茶菜化学成分研究

Structure of Rabdonervosin A

从显脉香茶菜叶及嫩技中分得一新二萜化合物，命名为rabdonervosinA。其结构经光谱分析确定为1α，15β三羟基-6，7－B-断裂一对映一贝壳杉一16烯，20环氧-7，20－内酯。

篈 new diterpene,rabdonervosin A(I ) was isolated from an ethanolic extract of the leaves and stems ofRabdosia nervosa co1lected in Jiangxi,China. Its structure was established as 1Q, 69, 15Attihydroxy-6, 7-B-sec-oent-kaur-16-en-6, 20-epoxy-7, 20-8-olide on basis of spectroscopic data.