毛萼香茶菜新二萜化合物——毛萼结晶甲、乙、丙、丁、戊的结构

Structures of Maoecrystals,New Diterpenoids from Rabdosia eriocalyx

从云南省丽江地区产毛萼香茶菜叶中分得五个新的对映—贝壳杉烯型二萜化合物,命名为毛萼结晶甲、乙、丙、丁和戊.经光谱和化学方法证明,它们的结构分别为6,7,8,9和10.

Five new diterpenoids,maoecrystal A(6),B(7),C(8),D(9),and E(10)togetherwith known eriocalyxin A(1),B(2),neorabdosin(3),odonicin(4),and sodoponin(5)were isolated from the leaves of Rabdosia eriocalyx(Dunn)Hara collected at Lijiangof Yunnan Province,and their structures were deduced from spectral and chemicalevidences.