金草蘭（Dendrobium clavatum var. aurantiacum）莖之成分研究

Constituents from the Stems of Dendrobium Clavatum var. Aurantiacum

從金草蘭莖部分離得到9 個化合物，經由光譜分析，鑑定為：coumarin （1） ，alkyl 4’-hydroxy-trans-cinnamates （2） ，campesterol （3） ，stigmasterol （4） ，β-sitosterol （5） ，aliphatic alcohols（6） ，alkyl trans-ferulates （7）, stigmast-4-en-3-one （8） ，及aliphatic acids （9） ，這些化合物是首次自本植物分離。在這些化合物中，coumarin （1） 為正己烷及乙酸乙酯抽出物之主成分。Nine compounds were isolated from the stems of Dendrobium clavatum var. aurantiacum . On the basis of spectral analysis, they were identified as coumarin (1 ), alkyl 4’-hydroxy-trans cinnamates (2 ), campesterol (3 ), stigmasterol (4 ), β -sitosterol (5 ), aliphatic alcohols (6 ), alkyl trans -ferulates (7 ), stigmast-4-en-3-one (8 ), and aliphatic acids (9 ). These compounds were first isolated from this plant. Among them, coumarin (1 ) is the major component in both n -hexane and ethyl acetate extracts.