Yang Shun-li, Ma Yin-hai, Liu Xi-kui
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, China.
Yao Xue Xue Bao. 2005 Feb;40(2):145-9.
To study the chemical constituents of Dioscorea parviflora.
The chemical constituents were isolated by silica gel and RP-18 column chromatography, and their chemical structures were elucidated by IR, NMR and MS.
Eleven steroides have been isolated from EtOH extract of Dioscorea parviflora and identified as isonarthogenin 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-glucopyranoside (I), diosgenin-diglucoside (II), prosapogenin A of dioscin (III), dioscin (IV), deltonin (V), deltoside (VI), methyl deltoside (VII), diosgenin 3-O-beta-D-glucopyranosyl (1-->3)-beta-D-glucopyranosyl-(1-->4)-[alpha-L-rhamnopyranosyl-(1-->2)]-beta-D-glucopyranoside (VIII), parvifloside (IX), methyl parvifloside (X), diosgenin (XI), and a mixture of beta-sitosterol and stigmasterol.
Compound X is a new compound. Compounds VII and X were methyl ethers of VI and IX, respectively, and may be produced during isolation. Compound I is isolated from Dioscorea L., and II, IV from Dioscorea parviflora for the first time.
研究小花盾叶薯蓣的化学成分。
采用硅胶柱色谱和RP - 18柱色谱分离化学成分，并通过红外光谱（IR）、核磁共振（NMR）和质谱（MS）对其化学结构进行鉴定。
从小花盾叶薯蓣乙醇提取物中分离得到11种甾体化合物，分别鉴定为异纳索皂甙元3 - O-α-L-鼠李吡喃糖基-（1→2）-β-D-葡萄糖吡喃糖苷（I）、薯蓣皂苷元双葡萄糖苷（II）、薯蓣皂苷原皂苷A（III）、薯蓣皂苷（IV）、三角叶薯蓣皂苷元（V）、三角叶薯蓣皂苷（VI）、甲基三角叶薯蓣皂苷（VII）、薯蓣皂苷元3 - O-β-D-葡萄糖吡喃糖基-（1→3）-β-D-葡萄糖吡喃糖基-（1→4）-[α-L-鼠李吡喃糖基-（1→2）]-β-D-葡萄糖吡喃糖苷（VIII）、小花盾叶薯蓣皂苷（IX）、甲基小花盾叶薯蓣皂苷（X）、薯蓣皂苷元（XI）以及β-谷甾醇和豆甾醇混合物。
化合物X为新化合物。化合物VII和X分别是VI和IX的甲基醚，可能在分离过程中产生。化合物I首次从薯蓣属植物中分离得到，化合物II、IV首次从小花盾叶薯蓣中分离得到。
