目的研究小花鬼针草B id ens p arv if lora全株的化学成分,并通过抑制组胺释放活性方法寻找生物活性化合物。方法采用硅胶、Sephadex LH-20和ODS柱色谱分离化合物,运用1D NM R,2D NM R等波谱法鉴定了化学结构,通过组胺抑制实验探讨抗...目的研究小花鬼针草B id ens p arv if lora全株的化学成分,并通过抑制组胺释放活性方法寻找生物活性化合物。方法采用硅胶、Sephadex LH-20和ODS柱色谱分离化合物,运用1D NM R,2D NM R等波谱法鉴定了化学结构,通过组胺抑制实验探讨抗炎活性。结果分离鉴定6种咖啡酰奎宁酸类化合物及其甲酯,分别是3,5-二氧咖啡酰奎宁酸(3,5-d i-O-caffeoy lqu in ic ac id,Ⅰ)、3,4-二氧咖啡酰奎宁酸(3,4-d i-O-caffeoy lqu in ic ac id,Ⅱ)、4,5-二氧咖啡酰奎宁酸(4,5-d i-O-caffeoy lqu in ic ac id,Ⅲ)、4-氧-咖啡酰奎宁酸(4-O-caffeoy lqu in ic ac id,Ⅳ)、5-氧-咖啡酰奎宁酸(5-O-caffeoy lqu in ic ac id,Ⅴ)、4-[3-(3,4-二羟基苯基)-丙烯酰氧基]-2,3-二羟基-2-甲基-丁酸{4-[3-(3,4-d ihydroxy-pheny l)-acry loy loxy]-2,3-d ihydroxy-2-m ethy l-bu tyric ac id,Ⅵ}。结论所有化合物均为首次从该植物中分得,化合物Ⅵ为新化合物。这些化合物显示一定的抑制组织胺释放活性。展开更多
Aim Isolation and structural elucidation of the constituents from the aerial part of Vitis thunbergii . Methods To isolate chemical constituents, column chromatography and HPLC were used. Physico chemical ...Aim Isolation and structural elucidation of the constituents from the aerial part of Vitis thunbergii . Methods To isolate chemical constituents, column chromatography and HPLC were used. Physico chemical characterization and spectroscopic analysis were employed for structural identification. Results Eleven polyphenols were isolated and identified. Conclusion Compound 1 is a new compound and its structure was characterized to be 3,5 dimethoxyl 4 hydroxyl phenylpropanol 9 O β D glycopyranoside.展开更多
文摘目的研究小花鬼针草B id ens p arv if lora全株的化学成分,并通过抑制组胺释放活性方法寻找生物活性化合物。方法采用硅胶、Sephadex LH-20和ODS柱色谱分离化合物,运用1D NM R,2D NM R等波谱法鉴定了化学结构,通过组胺抑制实验探讨抗炎活性。结果分离鉴定6种咖啡酰奎宁酸类化合物及其甲酯,分别是3,5-二氧咖啡酰奎宁酸(3,5-d i-O-caffeoy lqu in ic ac id,Ⅰ)、3,4-二氧咖啡酰奎宁酸(3,4-d i-O-caffeoy lqu in ic ac id,Ⅱ)、4,5-二氧咖啡酰奎宁酸(4,5-d i-O-caffeoy lqu in ic ac id,Ⅲ)、4-氧-咖啡酰奎宁酸(4-O-caffeoy lqu in ic ac id,Ⅳ)、5-氧-咖啡酰奎宁酸(5-O-caffeoy lqu in ic ac id,Ⅴ)、4-[3-(3,4-二羟基苯基)-丙烯酰氧基]-2,3-二羟基-2-甲基-丁酸{4-[3-(3,4-d ihydroxy-pheny l)-acry loy loxy]-2,3-d ihydroxy-2-m ethy l-bu tyric ac id,Ⅵ}。结论所有化合物均为首次从该植物中分得,化合物Ⅵ为新化合物。这些化合物显示一定的抑制组织胺释放活性。
文摘Aim Isolation and structural elucidation of the constituents from the aerial part of Vitis thunbergii . Methods To isolate chemical constituents, column chromatography and HPLC were used. Physico chemical characterization and spectroscopic analysis were employed for structural identification. Results Eleven polyphenols were isolated and identified. Conclusion Compound 1 is a new compound and its structure was characterized to be 3,5 dimethoxyl 4 hydroxyl phenylpropanol 9 O β D glycopyranoside.
