Objective:Dichocarpum auriculatum,an endangered perennial herb,is endemic to China and has been used as folk medicines for the treatment of cough,hepatitis,scrofula,and epilepsy.However,there is no phytochemical repor...Objective:Dichocarpum auriculatum,an endangered perennial herb,is endemic to China and has been used as folk medicines for the treatment of cough,hepatitis,scrofula,and epilepsy.However,there is no phytochemical report on this herbal so far.For the resource development and protective importance of this endangered medicinal plant,a phytochemical study was undertaken.Methods:The chemical constituents were purified by silica gel column,Sephadex LH-20 column,and semi-preparative reversed phase HPLC.NMR and MS spectra were used for structural identification.Results:Thirteen compounds were isolated from D.auriculatum.Their structures were characterized as jatrorrhizine(1),berberine(2),steponine(3),magnoflorine(4),coclauril(5),menisdaurin(6),menisdaurilide(7),aquilegiolide(8),(6 R,9 S)-3-oxo-α-ionol-β-D-glucopyranoside(9),blumenol C glucoside(10),palmitic acid(11),dibutylphthalate(12),and auriculatum A(13).Conclusion:Compound 13 is a new diester terephthalate derivative.All the compounds are obtained from the genus Dichocarpum for the first time,and compounds 9 and 10 have potential chemotaxonomic significance to the genus Dichocarpum.展开更多
目的建立人字果Dichocarpum dalzielii(Drumm.et Hutch.)W.T.Wang et Hsiao质量标准。方法HPLC法测定木兰花碱含有量,酸性染料比色法测定总生物碱含有量,2015年版《中国药典》法测定水分、总灰分、酸不溶性灰分、醇溶性浸出物含有量。...目的建立人字果Dichocarpum dalzielii(Drumm.et Hutch.)W.T.Wang et Hsiao质量标准。方法HPLC法测定木兰花碱含有量,酸性染料比色法测定总生物碱含有量,2015年版《中国药典》法测定水分、总灰分、酸不溶性灰分、醇溶性浸出物含有量。结果木兰花碱在0.2002~10.01μg范围内线性关系良好(r=0.9999),平均加样回收率为100.70%,RSD为2.9%;总生物碱在4.048~20.24 mg/L范围内线性关系良好(r=0.9998),平均加样回收率为96.70%,RSD为3.6%。12批样品中,木兰花碱、总生物碱、水分、总灰分、酸不溶性灰分、醇溶性浸出物质量分数分别为0.27%~1.49%、3.35%~5.98%、6.45%~8.50%、9.11%~13.35%、0.27%~2.96%、18.41%~25.06%。结论该方法准确可靠,重复性好,可用于人字果的质量控制。展开更多
基金funded by the CAMS Innovation Fund for Medical Sciences(CIFMS)ID:2016-I2M-1012Major Scientific and Technological Special Project for“Significant New Drugs Creation”(No.2018ZX09711001-008007).
文摘Objective:Dichocarpum auriculatum,an endangered perennial herb,is endemic to China and has been used as folk medicines for the treatment of cough,hepatitis,scrofula,and epilepsy.However,there is no phytochemical report on this herbal so far.For the resource development and protective importance of this endangered medicinal plant,a phytochemical study was undertaken.Methods:The chemical constituents were purified by silica gel column,Sephadex LH-20 column,and semi-preparative reversed phase HPLC.NMR and MS spectra were used for structural identification.Results:Thirteen compounds were isolated from D.auriculatum.Their structures were characterized as jatrorrhizine(1),berberine(2),steponine(3),magnoflorine(4),coclauril(5),menisdaurin(6),menisdaurilide(7),aquilegiolide(8),(6 R,9 S)-3-oxo-α-ionol-β-D-glucopyranoside(9),blumenol C glucoside(10),palmitic acid(11),dibutylphthalate(12),and auriculatum A(13).Conclusion:Compound 13 is a new diester terephthalate derivative.All the compounds are obtained from the genus Dichocarpum for the first time,and compounds 9 and 10 have potential chemotaxonomic significance to the genus Dichocarpum.
