A new natural product (1) together with 26 know compounds were isolated from the Bulbs of Ornithogalum caudatum. Their structures were established on the basis of spectral analyses as n-butyl pyroglutamate (1), nonade...A new natural product (1) together with 26 know compounds were isolated from the Bulbs of Ornithogalum caudatum. Their structures were established on the basis of spectral analyses as n-butyl pyroglutamate (1), nonadecyl alcohol(2), eicosanol(3), behenic acid(4), b-sitosterol(5), stigmasterol(6), glycerol 1-monocerotate(7), pyrocatechol(8), p-ethoxybenzoic acid(9), p-coumarinic acid(10), protocatechuric acid(11), ursolic acid(12), betulinic acid(13), fumaric acid(14), succinic acid(15), uracil(16), xanthine(17), quercetin(18), kaempferol (19), isorham-netin(20), adenosine(21), daucosterol(22), stigmasterol 3-O-b-D-glucopyranoside(23), quercetin 3-O-b-D-glucopyra-noside(24), kaempferol 3-O-b-D-glucopyranoside(25), rutin(26), and kaempferol 3-O-b-rutinoside(27). All of them, except compound 5, were isolated from this plant for the first time.展开更多
Four flavonol glycosides and three flavonols were isolated from the pericarp of \%Sophora japonica \%L. and elucidated by chemical and spectral method as kaempferol 3\|O\|β\|rutinoside (Ⅰ), rutin (Ⅱ), kaempferol 3\...Four flavonol glycosides and three flavonols were isolated from the pericarp of \%Sophora japonica \%L. and elucidated by chemical and spectral method as kaempferol 3\|O\|β\|rutinoside (Ⅰ), rutin (Ⅱ), kaempferol 3\|O\|β\|D\|glucoside (Ⅲ), quercetin 3\|O\|β\|D\|glucoside (Ⅳ), kaempferol (Ⅴ), quercetin (Ⅵ), isorhamnetin (Ⅶ). Among them, compounds Ⅰ, Ⅳ and Ⅶ are reported in this species for the first time.展开更多
目的 :对槐果皮中的黄酮醇三糖苷类成分进行研究。方法 :色谱技术分离纯化 ,理化性质和光谱分析 ,尤其是 2DNMR实验鉴定结构。结果 :分离得到 2个黄酮醇三糖苷成分 ,山柰酚 3 O β D 槐糖苷 7 O α L 鼠李糖苷 ,山柰酚 3 O (2″ O β D...目的 :对槐果皮中的黄酮醇三糖苷类成分进行研究。方法 :色谱技术分离纯化 ,理化性质和光谱分析 ,尤其是 2DNMR实验鉴定结构。结果 :分离得到 2个黄酮醇三糖苷成分 ,山柰酚 3 O β D 槐糖苷 7 O α L 鼠李糖苷 ,山柰酚 3 O (2″ O β D 葡萄糖基 ) β D 芸香糖苷。 结论展开更多
基金This work was supported by the Ministry of Science and Technology of China (96-901-05-266).
文摘A new natural product (1) together with 26 know compounds were isolated from the Bulbs of Ornithogalum caudatum. Their structures were established on the basis of spectral analyses as n-butyl pyroglutamate (1), nonadecyl alcohol(2), eicosanol(3), behenic acid(4), b-sitosterol(5), stigmasterol(6), glycerol 1-monocerotate(7), pyrocatechol(8), p-ethoxybenzoic acid(9), p-coumarinic acid(10), protocatechuric acid(11), ursolic acid(12), betulinic acid(13), fumaric acid(14), succinic acid(15), uracil(16), xanthine(17), quercetin(18), kaempferol (19), isorham-netin(20), adenosine(21), daucosterol(22), stigmasterol 3-O-b-D-glucopyranoside(23), quercetin 3-O-b-D-glucopyra-noside(24), kaempferol 3-O-b-D-glucopyranoside(25), rutin(26), and kaempferol 3-O-b-rutinoside(27). All of them, except compound 5, were isolated from this plant for the first time.
文摘Four flavonol glycosides and three flavonols were isolated from the pericarp of \%Sophora japonica \%L. and elucidated by chemical and spectral method as kaempferol 3\|O\|β\|rutinoside (Ⅰ), rutin (Ⅱ), kaempferol 3\|O\|β\|D\|glucoside (Ⅲ), quercetin 3\|O\|β\|D\|glucoside (Ⅳ), kaempferol (Ⅴ), quercetin (Ⅵ), isorhamnetin (Ⅶ). Among them, compounds Ⅰ, Ⅳ and Ⅶ are reported in this species for the first time.
文摘目的 :对槐果皮中的黄酮醇三糖苷类成分进行研究。方法 :色谱技术分离纯化 ,理化性质和光谱分析 ,尤其是 2DNMR实验鉴定结构。结果 :分离得到 2个黄酮醇三糖苷成分 ,山柰酚 3 O β D 槐糖苷 7 O α L 鼠李糖苷 ,山柰酚 3 O (2″ O β D 葡萄糖基 ) β D 芸香糖苷。 结论