从黑柴胡(Bupleurum smithii Wolff)根中分离出10个化合物,均为首次由该植物中获得。其中二个新三萜皂甙,即柴胡皂甙k和l(saikosaponin k and l),其结构经紫外、红外、核磁共振氢谱,碳谱和质谱等波谱测定和解析,分别确定为3β,16β,23,...从黑柴胡(Bupleurum smithii Wolff)根中分离出10个化合物,均为首次由该植物中获得。其中二个新三萜皂甙,即柴胡皂甙k和l(saikosaponin k and l),其结构经紫外、红外、核磁共振氢谱,碳谱和质谱等波谱测定和解析,分别确定为3β,16β,23,28-四羟基齐墩果烷-11,13(18)-二烯-3-O-β-D-吡喃木糖基-(1→2)-β-D-吡喃葡萄糖基-(1→3)-β-D-吡喃呋糖甙和3β,16α,23,28,30-五羟基齐墩果烷-11,13(18)-二烯-3-O-β-D-吡喃葡萄糖基-(1→3)-β-D-吡喃呋糖甙。展开更多
从云南甘草(Glycyrrhiza yunnanensis)根中分离出10个化合物。本文报道其中二个新三萜皂甙元,云南甘草皂甙元A和B(glyyunnansapogenin A and B),以及已知化合物β-谷甾醇的鉴定。云南甘草皂甙元A和B的结构经衍生物制备,红外,核磁共振氢...从云南甘草(Glycyrrhiza yunnanensis)根中分离出10个化合物。本文报道其中二个新三萜皂甙元,云南甘草皂甙元A和B(glyyunnansapogenin A and B),以及已知化合物β-谷甾醇的鉴定。云南甘草皂甙元A和B的结构经衍生物制备,红外,核磁共振氢谱、碳谱和质谱等光谱测定和解析、分别推定为3β,24-dihydroxy-16-oxo-olean-12-en-29-oic acid和3β,21α,24-trihydroxy-olean-12-en-30-oic acid。展开更多
Five triterpene glycosides have been isolated from the leaves of Acanthopanax giraldii Harms (Araliaceae), which are elucidated as: hederagenin 3 O α L rhamnopyranosyl ( 1→2 ) α L arabinopyranoside(Ⅰ),hederagenin ...Five triterpene glycosides have been isolated from the leaves of Acanthopanax giraldii Harms (Araliaceae), which are elucidated as: hederagenin 3 O α L rhamnopyranosyl ( 1→2 ) α L arabinopyranoside(Ⅰ),hederagenin 28 α L rhamnopyranosyl ( 1→4 ) β D glucopyranosyl ( 1→6 ) β D glucopyranosylester(Ⅱ),3 O α L arabinopyranosyl hederagenin 28 β D glucopyranosyl ( 1→6 ) β D glucopyranosylester(Ⅲ),3 O α L arabinopyranosyl hederagenin 28 α L rhamnopyranosyl ( 1→4 ) β D glucopyranosyl ( 1→6 ) β D glucopyranosylester(Ⅳ) and 3 O α L rhamnopyranosyl ( 1→2 ) α L arabinopyranosyl hederagenin 28 α L rhamnopyranosyl ( 1→4 ) β D glucopyranosyl ( 1→6 ) β D glucopyranosylester(Ⅴ).All of them are reported in this genus for the first time. Perhaps the findings are valuable for chemotaxonomy of Acanthopanax genus.展开更多
Five compounds were isolated from the root of Astragalus floridus Benth. collected from Qinghai province, they were identified with spectral analysis and chemical methods as astrasiversianin Ⅴ (1), astragaloside Ⅳ (...Five compounds were isolated from the root of Astragalus floridus Benth. collected from Qinghai province, they were identified with spectral analysis and chemical methods as astrasiversianin Ⅴ (1), astragaloside Ⅳ (2), astragaloside Ⅱ(3), astrasiversianin Ⅵ(4), astramembrannin Ⅱ(5). Pharmacological test showed that astragaloside Ⅳ cound improve heart failure significantly.展开更多
文摘从黑柴胡(Bupleurum smithii Wolff)根中分离出10个化合物,均为首次由该植物中获得。其中二个新三萜皂甙,即柴胡皂甙k和l(saikosaponin k and l),其结构经紫外、红外、核磁共振氢谱,碳谱和质谱等波谱测定和解析,分别确定为3β,16β,23,28-四羟基齐墩果烷-11,13(18)-二烯-3-O-β-D-吡喃木糖基-(1→2)-β-D-吡喃葡萄糖基-(1→3)-β-D-吡喃呋糖甙和3β,16α,23,28,30-五羟基齐墩果烷-11,13(18)-二烯-3-O-β-D-吡喃葡萄糖基-(1→3)-β-D-吡喃呋糖甙。
文摘从云南甘草(Glycyrrhiza yunnanensis)根中分离出10个化合物。本文报道其中二个新三萜皂甙元,云南甘草皂甙元A和B(glyyunnansapogenin A and B),以及已知化合物β-谷甾醇的鉴定。云南甘草皂甙元A和B的结构经衍生物制备,红外,核磁共振氢谱、碳谱和质谱等光谱测定和解析、分别推定为3β,24-dihydroxy-16-oxo-olean-12-en-29-oic acid和3β,21α,24-trihydroxy-olean-12-en-30-oic acid。
文摘Five triterpene glycosides have been isolated from the leaves of Acanthopanax giraldii Harms (Araliaceae), which are elucidated as: hederagenin 3 O α L rhamnopyranosyl ( 1→2 ) α L arabinopyranoside(Ⅰ),hederagenin 28 α L rhamnopyranosyl ( 1→4 ) β D glucopyranosyl ( 1→6 ) β D glucopyranosylester(Ⅱ),3 O α L arabinopyranosyl hederagenin 28 β D glucopyranosyl ( 1→6 ) β D glucopyranosylester(Ⅲ),3 O α L arabinopyranosyl hederagenin 28 α L rhamnopyranosyl ( 1→4 ) β D glucopyranosyl ( 1→6 ) β D glucopyranosylester(Ⅳ) and 3 O α L rhamnopyranosyl ( 1→2 ) α L arabinopyranosyl hederagenin 28 α L rhamnopyranosyl ( 1→4 ) β D glucopyranosyl ( 1→6 ) β D glucopyranosylester(Ⅴ).All of them are reported in this genus for the first time. Perhaps the findings are valuable for chemotaxonomy of Acanthopanax genus.
文摘Five compounds were isolated from the root of Astragalus floridus Benth. collected from Qinghai province, they were identified with spectral analysis and chemical methods as astrasiversianin Ⅴ (1), astragaloside Ⅳ (2), astragaloside Ⅱ(3), astrasiversianin Ⅵ(4), astramembrannin Ⅱ(5). Pharmacological test showed that astragaloside Ⅳ cound improve heart failure significantly.