The first synthesis of pennogenin, an aglycone of bioactive components of Chinese traditional medicine named Chonglou(Paris), starting from diosgenin, has been reported, which displays a new strategy of utilizing the ...The first synthesis of pennogenin, an aglycone of bioactive components of Chinese traditional medicine named Chonglou(Paris), starting from diosgenin, has been reported, which displays a new strategy of utilizing the resource compounds. According to this new strategy, the full and rational utilization of the intact skeleton and functional groups of starting material has been realized in the conversion of diosgenin to pennogenin. The key step for synthesis of pen-nogenin is the regioselective transformation of cholest-5-en-16,22-dion-3,26-diol to cholest- 5,16-dien-22-on-3,26-diol, which can be used to synthesize other bioactive steroids such as cephalostatin and OSW-1.展开更多
目的研究长药隔重楼Paris polyphylla Smith var.pseudothibetica的化学成分。方法采用硅胶柱层析、大孔吸附树脂、葡聚糖凝胶Sephadex LH-20、预装硅胶中压柱层析及半制备RP-HPLC等技术分离纯化单体化合物,根据理化性质及波谱数据鉴定...目的研究长药隔重楼Paris polyphylla Smith var.pseudothibetica的化学成分。方法采用硅胶柱层析、大孔吸附树脂、葡聚糖凝胶Sephadex LH-20、预装硅胶中压柱层析及半制备RP-HPLC等技术分离纯化单体化合物,根据理化性质及波谱数据鉴定其结构。结果从长药隔重楼乙醇提取物中分离并鉴定了8个甾体皂苷类单体化合物,分别是偏诺皂苷元-3-O-β-D-葡萄吡喃糖苷(Ⅰ)、薯蓣皂苷元-3-O-α-L-阿拉伯呋喃糖基(1→4)-[α-L-鼠李吡喃糖基(1→2)]-β-D-葡萄吡喃糖苷(Ⅱ)、薯蓣皂苷元-3-O-α-D-葡萄吡喃糖基(1→3)-[α-L-鼠李吡喃糖基(1→2)]-β-D-葡萄吡喃糖苷(Ⅲ)、偏诺皂苷元-3-α-L-鼠李吡喃糖基(1→2)-β-D-葡萄吡喃糖苷(Ⅳ)、偏诺皂苷元-3-O-α-L-阿拉伯呋喃糖基(1→4)-[α-L-鼠李吡喃糖基(1→2)]-β-D-葡萄吡喃糖苷(Ⅴ)、偏诺皂苷元-3-O-α-L-鼠李吡喃糖基(1→4)-α-L-鼠李吡喃糖基(1→4)-[α-L-鼠李吡喃糖基(1→2)]-β-D-葡萄吡喃糖苷(Ⅵ)、偏诺皂苷元-3-O-β-L-鼠李吡喃糖基(1→4)-[α-L-鼠李吡喃糖基(1→2)]-β-D-葡萄吡喃糖苷(Ⅶ)、偏诺皂苷元-3-O-β-D-木呋喃糖基(1→5)-α-L-阿拉伯呋喃糖基(1→4)-[α-L-鼠李吡喃糖基(1→2)]-β-D-葡萄吡喃糖苷(Ⅷ)。结论首次从长药隔重楼中分离并鉴定出化合物Ⅰ~Ⅷ。展开更多
基金This work was supported by the National Natural Science Foundation of China(Grant No.20372078).
文摘The first synthesis of pennogenin, an aglycone of bioactive components of Chinese traditional medicine named Chonglou(Paris), starting from diosgenin, has been reported, which displays a new strategy of utilizing the resource compounds. According to this new strategy, the full and rational utilization of the intact skeleton and functional groups of starting material has been realized in the conversion of diosgenin to pennogenin. The key step for synthesis of pen-nogenin is the regioselective transformation of cholest-5-en-16,22-dion-3,26-diol to cholest- 5,16-dien-22-on-3,26-diol, which can be used to synthesize other bioactive steroids such as cephalostatin and OSW-1.
基金The National Nature Science Foundation of China(NSFC No.20602040)The scientific and innovation research of college graduate in Jiangsu province(CXLX11_0788)
文摘目的研究长药隔重楼Paris polyphylla Smith var.pseudothibetica的化学成分。方法采用硅胶柱层析、大孔吸附树脂、葡聚糖凝胶Sephadex LH-20、预装硅胶中压柱层析及半制备RP-HPLC等技术分离纯化单体化合物,根据理化性质及波谱数据鉴定其结构。结果从长药隔重楼乙醇提取物中分离并鉴定了8个甾体皂苷类单体化合物,分别是偏诺皂苷元-3-O-β-D-葡萄吡喃糖苷(Ⅰ)、薯蓣皂苷元-3-O-α-L-阿拉伯呋喃糖基(1→4)-[α-L-鼠李吡喃糖基(1→2)]-β-D-葡萄吡喃糖苷(Ⅱ)、薯蓣皂苷元-3-O-α-D-葡萄吡喃糖基(1→3)-[α-L-鼠李吡喃糖基(1→2)]-β-D-葡萄吡喃糖苷(Ⅲ)、偏诺皂苷元-3-α-L-鼠李吡喃糖基(1→2)-β-D-葡萄吡喃糖苷(Ⅳ)、偏诺皂苷元-3-O-α-L-阿拉伯呋喃糖基(1→4)-[α-L-鼠李吡喃糖基(1→2)]-β-D-葡萄吡喃糖苷(Ⅴ)、偏诺皂苷元-3-O-α-L-鼠李吡喃糖基(1→4)-α-L-鼠李吡喃糖基(1→4)-[α-L-鼠李吡喃糖基(1→2)]-β-D-葡萄吡喃糖苷(Ⅵ)、偏诺皂苷元-3-O-β-L-鼠李吡喃糖基(1→4)-[α-L-鼠李吡喃糖基(1→2)]-β-D-葡萄吡喃糖苷(Ⅶ)、偏诺皂苷元-3-O-β-D-木呋喃糖基(1→5)-α-L-阿拉伯呋喃糖基(1→4)-[α-L-鼠李吡喃糖基(1→2)]-β-D-葡萄吡喃糖苷(Ⅷ)。结论首次从长药隔重楼中分离并鉴定出化合物Ⅰ~Ⅷ。