Six new prenylated flavonoid glycosides,including four new furan-flavonoid glycosides wushepimedoside A–D(1–4)and two new prenyl flavonoid derivatives wushepimedoside E–F(5–6),and one know analog epimedkoreside B(...Six new prenylated flavonoid glycosides,including four new furan-flavonoid glycosides wushepimedoside A–D(1–4)and two new prenyl flavonoid derivatives wushepimedoside E–F(5–6),and one know analog epimedkoreside B(7)were isolated from biotransformation products of the aerial parts of Epimedium wushanense.Their structures were elucidated according to comprehensive analysis of HR-MS and NMR spectroscopic data,and the absolute configurations were assigned using experimental and calculated electronic circular dichroism(ECD)data.The regulatory activity of compounds 1–7 on the production of testosterone in primary rat Leydig cells were investigated,and 4 and 5 exhibited testosterone production-promoting activities.Molecular docking analysis suggested that bioactive compounds 4 and 5 showed the stable binding with 3β-HSD and 4 also had good affinity with Cyp17A1,which suggested that these compounds may regulate testosterone production through stimulating the expression of the above two key proteins.展开更多
目的:用 HPLC 梯度洗脱法测定巫山淫羊藿中4种主要成分的含量,考察了淫羊藿属苷 A、双藿苷 A、朝藿定 C 和淫羊藿苷在巫山淫羊藿不同部位中的分布。方法:采用 RP-HPLC 法测定,以 BECKMAN COULTER_(TM)-C_(18)(10μm,4.6 mm×250mm)...目的:用 HPLC 梯度洗脱法测定巫山淫羊藿中4种主要成分的含量,考察了淫羊藿属苷 A、双藿苷 A、朝藿定 C 和淫羊藿苷在巫山淫羊藿不同部位中的分布。方法:采用 RP-HPLC 法测定,以 BECKMAN COULTER_(TM)-C_(18)(10μm,4.6 mm×250mm)为色谱柱,流动相为乙腈-水,梯度洗脱(0 min,乙腈-水比例为20:80;5 min,比例为30:70;10 min,比例为50:50),流速为1 mL·min^(-1),检测波长270 nm。结果:淫羊藿属苷 A 在0.188μg～1.880μg,淫羊藿苷在0.214μg～2.140μg,双藿苷 A在0.240μg～2.400μg,朝藿定 C 在0.282μg～2.820μg范围内呈良好线性关系;重复性实验的 RSD 分别为1.2%,1.3%,1.2%,1.2%。巫山淫芋藿不同部位双藿苷 A 和朝藿定 C 的含量较大,同一植株的不同部位中朝藿定 C 的分布为根>叶>茎。双藿苷 A 的分布为根>茎>叶,淫羊藿属苷 A 和淫羊藿苷含量较少。结论:巫山淫羊藿根中的化学成分以朝藿定 C 为最高,双藿苷 A 为次,而巫山淫羊藿叶中也以朝藿定 C 含量为最高。展开更多
基金supported by the National Science and Technology Major Project(No.2017ZX09301072)China Postdoctoral Science Foundation(No.2016M603041).
文摘Six new prenylated flavonoid glycosides,including four new furan-flavonoid glycosides wushepimedoside A–D(1–4)and two new prenyl flavonoid derivatives wushepimedoside E–F(5–6),and one know analog epimedkoreside B(7)were isolated from biotransformation products of the aerial parts of Epimedium wushanense.Their structures were elucidated according to comprehensive analysis of HR-MS and NMR spectroscopic data,and the absolute configurations were assigned using experimental and calculated electronic circular dichroism(ECD)data.The regulatory activity of compounds 1–7 on the production of testosterone in primary rat Leydig cells were investigated,and 4 and 5 exhibited testosterone production-promoting activities.Molecular docking analysis suggested that bioactive compounds 4 and 5 showed the stable binding with 3β-HSD and 4 also had good affinity with Cyp17A1,which suggested that these compounds may regulate testosterone production through stimulating the expression of the above two key proteins.
文摘目的:用 HPLC 梯度洗脱法测定巫山淫羊藿中4种主要成分的含量,考察了淫羊藿属苷 A、双藿苷 A、朝藿定 C 和淫羊藿苷在巫山淫羊藿不同部位中的分布。方法:采用 RP-HPLC 法测定,以 BECKMAN COULTER_(TM)-C_(18)(10μm,4.6 mm×250mm)为色谱柱,流动相为乙腈-水,梯度洗脱(0 min,乙腈-水比例为20:80;5 min,比例为30:70;10 min,比例为50:50),流速为1 mL·min^(-1),检测波长270 nm。结果:淫羊藿属苷 A 在0.188μg～1.880μg,淫羊藿苷在0.214μg～2.140μg,双藿苷 A在0.240μg～2.400μg,朝藿定 C 在0.282μg～2.820μg范围内呈良好线性关系;重复性实验的 RSD 分别为1.2%,1.3%,1.2%,1.2%。巫山淫芋藿不同部位双藿苷 A 和朝藿定 C 的含量较大,同一植株的不同部位中朝藿定 C 的分布为根>叶>茎。双藿苷 A 的分布为根>茎>叶,淫羊藿属苷 A 和淫羊藿苷含量较少。结论:巫山淫羊藿根中的化学成分以朝藿定 C 为最高,双藿苷 A 为次,而巫山淫羊藿叶中也以朝藿定 C 含量为最高。
基金This work was supported by the National Natural Science Foundation of China (No. 30570171), 100 Talents Program of Chinese Academy of Sciences (No. 05045112), and Wuhan Chenguang Project (No. 20055003059-45).
