摘要
从云南省寻甸县毛萼香茶菜[Rabdosia eriocalyx(Dunn.)Hara]叶中分离到两种新的和七种已知的对映-贝壳杉烯型二萜成分。根据各种光谱数据推定两种新成分的化学结构分别为:对映-7α,15α-二羟基-1β,6α-二乙酰氧基-7β,20-环氧-16-贝壳杉烯(1)和对映-7α,15α-二羟基-6α-乙酰氧基-7β,20-环氧-16-贝壳杉烯(2)。
Two new named maoecrystal F(1)and G(2)and seven known ent-kaurene diter- penoids were isolated from the leaves of Rabdosia eriocalyx(Dunn)Hara collected: at Xundian County,Yunnan Province,and their structures were determined by spe- ctroscopic analysis.Maoecrystal F and G are elucidated as ent-7a,15α-dihydrooxyl- lβ,6α-diacetoxyl-7β,20-epoxy-16-kaurene(1)and ent-7a,15α-dihydroxyl-6α-ace- toxyl-7β,20-epoxy-16-kaurene(2),respectively.
关键词
香茶菜
二萜
化学成分
Rabdosia eriocalyx
ent-kaurene
diterpenoid
maoecrystal F
maoecrystal G
