摘要
从毛梗希莶（Ｓｉｅｂｅｓｂｅｃｋｉａｇｌａｂｒｅｓｃｅｎｓ）的乙醇提取物中分到胡萝卜甙和３个二萜类成分，根据光谱和化学证据，３个二萜的化学结构被分别确定为：对映－１６β，１７－二羟基贝壳杉烷－１９－酸（１），腺梗希莶甙（２）和希莶甙（３）。对映二羟基－１６β，１７－贝壳杉烷－酸和腺梗希莶甙系首次从毛梗希莶中到。
Three diterpenoids, compound A (1), B (2) and C (3), have been isolated together with daucosterol (4) from the ethanol extract of Siegesbeckia glabrescens. Their chemical structures have been elucidated as ent-16β,17-dihydroxykauran-19-oic acid (1), siegesbeckioside (2), darutoside (3),on the basis of chemical and spectral evidences. Compounds 1 and 2 are isolated for the first time from Siegesbeckia glabrescens.
出处
《云南植物研究》
CSCD
1998年第2期233-238,共6页
Acta Botanica Yunnanica
关键词
菊科
毛梗希莶
二羟基南杉烷
化学成分
Compositae, Siegesbeckia glabrescens, ent-16β,17-dihydroxykauran-19-oic acid (1), Siegesbeckioside(2), Darutoside (3)
