金钗石斛化学成分的研究

 目的　对金钗石斛 (Dendrobium nobile Lindl)茎的化学成分进行研究。方法　使用硅胶柱色谱进行分离纯化,理化性质和光谱分析鉴定结构。结果　分离并鉴定了5个单体化合物及2个系列混合物。分别为海松二烯,3-甲氧基-4-羟基反式肉桂酸二十二烷酯,3-甲氧基-4-羟基反式肉桂酸二十四烷酯,豆甾醇,对羟基顺式肉桂酸三十烷酯,对羟基反式肉桂酸直链烷酯的4个系列化合物的混合物,直链烷醇的5个系列化合物的混合物。结论　以上成分均为首次从该种植物中分得,其中海松二烯为首次从该属植物中分得。

Studies on the chemical constituents of Dendrobium nobile

OBJECTIVE To study the chemical constituents of Dendrobium nobile Lindl. METHODS The constituentes were isolated through column chromatography and identified on the basis of their physiochemical and spectral data. RESULTS Five monomers and two mixtures were isolated and identified as pimaradiene, n-docosyl ferulate, n-tetracosyl ferulate, stigmasterol, n-triacontyl cis-p-coumarate, the mixture of n-tetracosyl trans-p- coumarate, n- hexacosyl trans-p-coumarate, n-octacosyl trans-p-coumarate and defuscin, respectively, and the mixture of n-hexacosyl alcohol and n-octacosyl alcohol and n-triacontyl alcohol, n-hentriacontyl alcohol, n-dotriacontyl alcohol. CONCLUSION All these constituentes were isolated from this plant for the first time. Pimaradiene was isolated from Dendrobium genus for the first time.