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天冬化学成分的研究(Ⅱ)
沈阳,陈海生*,王琼
0
(第二军医大学药学院天然药物化学教研室,上海 200433)
摘要:
目的:研究天冬的化学成分。方法:经大孔树脂、反复硅胶柱色谱、Sephadex LH20凝胶柱色谱和C18反相硅胶柱色谱等各种色谱方法分离天冬中的化学成分,通过理化性质和现代波谱技术(MS、1HNMR、13CNMR)确定所分离化合物的结构。结果:从其乙醇提取物中分离得到5个化合物,经鉴定分别为薯蓣皂苷元3OβD吡喃葡萄糖苷(Ⅰ),异菝葜皂苷元(Ⅱ),26OβD吡喃葡萄糖基呋甾3β,22,26三醇3OβD吡喃葡萄糖基(1→2)OβD吡喃葡萄糖苷(Ⅲ),26OβD吡喃葡萄糖基呋甾5烯3β,2α,26三醇3O\[αα吡喃鼠李糖基(1→2)\]\[αα吡喃鼠李糖基(1→4)\] βD吡喃葡萄糖苷(Ⅳ),26OβD吡喃葡萄糖基呋甾3β,26二醇22甲氧基3OαL吡喃鼠李糖基(1→4)OβD吡喃葡萄糖苷(Ⅴ)。结论:化合物Ⅰ~Ⅴ均为首次从天冬中得到。
关键词:  天冬  呋甾皂苷  中药理化鉴定
DOI:10.3724/SP.J.1008.2007.01241
投稿时间:2007-07-23
基金项目:国家自然科学基金(20472113).
Studies on chemical constituents of Asparagus cochinchinensis
SHEN Yang, CHEN Hai-sheng*, WANG Qiong
(Department of Natural Medicinal Chemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, China)
Abstract:
Objective:To study the chemical components in the root of Asparagus cochinchinensis (Lour.) Merr. Methods: Chemical components of Asparagus cochinchinensis root were isolated by column chromatography on macroporous resin, Silgel, Sephadex LH20, ODS, etc. and the structures of the components were identified by physiochemical and spectral analysis, such as MS, 1HNMR, and 13CNMR. Results: The following 5 components were isolated and identified: diosgenin3OβDglucopyranoside(Ⅰ), smilagenin(Ⅱ), 26OβDglucopyranosylfurost3β,22,26triol3OβDglucopyranosyl(1→2)OβDglucopyranoside(Ⅲ),26OβDglucopyranosylfurost5,20en3β,2α,26triol3O\[αα rhamnopyranosyl(1→2)\]\[ααrhamnopyranosyl(1→4)\]βDglucopyranoside(Ⅳ), and 26OβDglucopyranosylfurost3β, 26diol22methoxy3OαLrhamnopyranosy(1→4)OβDglucopyranoside (Ⅴ). Conclusion: All the 5 compounds isolated from Asparagus cochinchinensis in this study is reported for the first time.
Key words:  Asparagus cochinchinensis  furostanol saponins  TCD physic chem identific