目的对藏药蕨麻主要化学成分进行结构鉴定。方法采用大孔吸附树脂和硅胶柱色谱及HPLC制备色谱技术进行分离纯化,应用化学反应、热分析、光谱与电磁波谱综合解析,特别是一维和二维超导核磁共振技术,鉴定化合物的结构。结果从蕨麻首次分...目的对藏药蕨麻主要化学成分进行结构鉴定。方法采用大孔吸附树脂和硅胶柱色谱及HPLC制备色谱技术进行分离纯化,应用化学反应、热分析、光谱与电磁波谱综合解析,特别是一维和二维超导核磁共振技术,鉴定化合物的结构。结果从蕨麻首次分离纯化的3个化合物单体为五环三萜皂苷类成分,即2,α3,β19α-三羟基-齐墩果酸-28-O-β-D-葡萄糖苷(24-deoxy-sericos ide,Ⅰ)、2,α3,β19β-三羟基-乌苏酸-28-O-β-D-吡喃半乳糖苷(anseri-nos ide,Ⅱ)和2-羰基-3,β19α-二羟基-乌苏酸-28-O-β-D-葡萄糖苷(2-oxo-pom o lic ac id-βD-g lucopyranosy l ester,Ⅲ),其中化合物Ⅱ为新化合物(命名为蕨麻苷)。结论此3个化合物为首次从蕨麻中分离得到,其中蕨麻苷经鉴定为新化合物。展开更多
Five flavonoid compounds were isolated from stem and leaf of Bupleurum smithii Wolff var.parvifolium for the first time, their structures were identified as narcissin(Ⅰ), rutin(Ⅱ), isorhamnetin(Ⅲ), guaijaverin(Ⅳ),...Five flavonoid compounds were isolated from stem and leaf of Bupleurum smithii Wolff var.parvifolium for the first time, their structures were identified as narcissin(Ⅰ), rutin(Ⅱ), isorhamnetin(Ⅲ), guaijaverin(Ⅳ), quercetin(Ⅴ).展开更多
文摘目的对藏药蕨麻主要化学成分进行结构鉴定。方法采用大孔吸附树脂和硅胶柱色谱及HPLC制备色谱技术进行分离纯化,应用化学反应、热分析、光谱与电磁波谱综合解析,特别是一维和二维超导核磁共振技术,鉴定化合物的结构。结果从蕨麻首次分离纯化的3个化合物单体为五环三萜皂苷类成分,即2,α3,β19α-三羟基-齐墩果酸-28-O-β-D-葡萄糖苷(24-deoxy-sericos ide,Ⅰ)、2,α3,β19β-三羟基-乌苏酸-28-O-β-D-吡喃半乳糖苷(anseri-nos ide,Ⅱ)和2-羰基-3,β19α-二羟基-乌苏酸-28-O-β-D-葡萄糖苷(2-oxo-pom o lic ac id-βD-g lucopyranosy l ester,Ⅲ),其中化合物Ⅱ为新化合物(命名为蕨麻苷)。结论此3个化合物为首次从蕨麻中分离得到,其中蕨麻苷经鉴定为新化合物。
文摘Five flavonoid compounds were isolated from stem and leaf of Bupleurum smithii Wolff var.parvifolium for the first time, their structures were identified as narcissin(Ⅰ), rutin(Ⅱ), isorhamnetin(Ⅲ), guaijaverin(Ⅳ), quercetin(Ⅴ).
