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[摘要]
从显脉香茶菜茎叶中分得一新二萜化合物,命名为 rabdonervosin B,根据光谱数据分析确定其结构 1α,15β-二羟基-6β-甲氧基-6,7-B-断裂-对映-贝壳杉-16烯-6,20-环氧-7,20-δ-内酯.
[Key word]
[Abstract]
A new diterpene, rabdonervosin B (Ⅰ),was isolated from the leaves and stems of Rabdosia nervosa (Hemsl.) C. Y. Wu. et H. W. Li. Its structure has been shown to be 1α,15β-dihydroxy-6β-methoxy-6, 7-B-seco-ent-kaur-16-en-6, 20-epoxy-7, 20-δ-olide on the basis of spectroscopic data and in comparison with the known rabdonervosin A(Ⅱ).
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