从湖北贝母Fritillaria hupehensis Hsiao et K.C.Hsia经干燥的鳞茎中分离出Ⅰ～Ⅳ4个生物碱,经理化常数测定和波谱分析,并与标准品对照,鉴定碱Ⅰ,Ⅱ和Ⅲ分别为浙贝甲素(veimine)、浙贝乙素(Peiminine)和鄂贝新(ebeiensine),其中鄂贝新...从湖北贝母Fritillaria hupehensis Hsiao et K.C.Hsia经干燥的鳞茎中分离出Ⅰ～Ⅳ4个生物碱,经理化常数测定和波谱分析,并与标准品对照,鉴定碱Ⅰ,Ⅱ和Ⅲ分别为浙贝甲素(veimine)、浙贝乙素(Peiminine)和鄂贝新(ebeiensine),其中鄂贝新咱湖北贝母中首次得到.碱Ⅳ是一种微量生物碱甙,C_(33)H_(53)NO_8,mp206～208℃,定名为湖贝甙(hupehemonoside),经IR,MS,~1HNMR和^(13)CNMR解析,推定其结构为5α,14α,17β,22β-cevanine-20β-hydroxyl-6-oxo-3β-O-β-D-glucoside。展开更多
A new triterpenoid has been isolated from the leaves and stems of Fritillaria hupehensis Hsiao et K.C. Hsia. Its structure was established as （2329-9,19-cycloart-23-ene-3α,25-diol 1 through chemical and spectroscopi...A new triterpenoid has been isolated from the leaves and stems of Fritillaria hupehensis Hsiao et K.C. Hsia. Its structure was established as （2329-9,19-cycloart-23-ene-3α,25-diol 1 through chemical and spectroscopic studies including 2D NMR. Another known triterpenoid 9,19-cycloart-25-ene-313,24ζ-diol 2 was also isolated.展开更多
A reverse-phase high pressure liquid chromatography （HPLC） method with evaporative light scattering detection （ELSD） has been developed for the quantitative analysis of hupehenine in the total alkaloids from Friti...A reverse-phase high pressure liquid chromatography （HPLC） method with evaporative light scattering detection （ELSD） has been developed for the quantitative analysis of hupehenine in the total alkaloids from Fritillaria hupehensis. Samples were analyzed on a reverse-phase column （Hypersil C-18） with a mobile phase of methanol：water：chloroform： triethylamine （85：15：1：0.6）. The ELSD was set at the drift tube temperature of 68.3℃ and gas flow rate of 1.8 L/min. Hupehenine＇s retention time was 13.7 min with an asymmetry factor of 1.2. The validity of the method has been verified with linearity, limit of detection, accuracy and precision. The logarithmic linear curve was obtained from 8.936 to 134.04 μg/mL （r=0.9993）. The detection limit （S/N〉3） of hupehenine was 1.79 μg/mL on the column. Intra-day RSD was 1.42% and inter-day RSD was 2.26% （3 days within a week）. The average recovery of hupehenine was 101.50%, and RSD was 1.62%.展开更多
A new highly conjugated alkaloid of veratramine type, 22S,25S,5α-veratramine-7(8),12(14)-diene-3β,13β,23β-triol-6-one (1), was isolated from the bulbs of Fritillaria hupehensis Hsiao et K.C. Hsia. Its structure wa...A new highly conjugated alkaloid of veratramine type, 22S,25S,5α-veratramine-7(8),12(14)-diene-3β,13β,23β-triol-6-one (1), was isolated from the bulbs of Fritillaria hupehensis Hsiao et K.C. Hsia. Its structure was determined on the basis of spectroscopic evidences.展开更多
Phytochemical investigation of the bulbs of Fritillaria hupehensis resulted in the isolation and structural elucidation of a new highly conjugated alkaloid of veratramine type identified as 3β,23β-dihydroxy-7,12（14...Phytochemical investigation of the bulbs of Fritillaria hupehensis resulted in the isolation and structural elucidation of a new highly conjugated alkaloid of veratramine type identified as 3β,23β-dihydroxy-7,12（14）-dien-5α- veratramin-6-one （1）, together with two known alkaloids, ebeinine （2） and zhebeinine （3）, which were isolated for the first time from F. hupehensis. The structures of alkaloids 1-3 were established by extensive 1D and 2D NMR spectral analyses.展开更多
湖北贝母为传统中药,然而《Flora of China》将其基原植物湖北贝母Fritillaria hupehensis归并于天目贝母F.monantha项下。该实验采用分子系统学方法,以川百合Lilium davidii为外类群,用核基因ITS序列和叶绿体基因rpl16序列、matK序列等...湖北贝母为传统中药,然而《Flora of China》将其基原植物湖北贝母Fritillaria hupehensis归并于天目贝母F.monantha项下。该实验采用分子系统学方法,以川百合Lilium davidii为外类群,用核基因ITS序列和叶绿体基因rpl16序列、matK序列等3个片段对湖北贝母及其近缘类群天目贝母F.monantha、安徽贝母F.anhuiensis等进行联合建树分析,对湖北贝母植物的系统位置进行了探讨,为湖北贝母药材的安全使用提供分子证据。结果显示,分子系统树上,3种贝母各自的居群聚为一支,之后天目贝母与安徽贝母聚为一支,最后与湖北贝母聚为一支。表明湖北贝母与天目贝母的亲缘关系可能要远于安徽贝母与天目贝母之间的关系,因此不适宜将湖北贝母归并于天目贝母。展开更多
文摘从湖北贝母Fritillaria hupehensis Hsiao et K.C.Hsia经干燥的鳞茎中分离出Ⅰ～Ⅳ4个生物碱,经理化常数测定和波谱分析,并与标准品对照,鉴定碱Ⅰ,Ⅱ和Ⅲ分别为浙贝甲素(veimine)、浙贝乙素(Peiminine)和鄂贝新(ebeiensine),其中鄂贝新咱湖北贝母中首次得到.碱Ⅳ是一种微量生物碱甙,C_(33)H_(53)NO_8,mp206～208℃,定名为湖贝甙(hupehemonoside),经IR,MS,~1HNMR和^(13)CNMR解析,推定其结构为5α,14α,17β,22β-cevanine-20β-hydroxyl-6-oxo-3β-O-β-D-glucoside。
文摘A new triterpenoid has been isolated from the leaves and stems of Fritillaria hupehensis Hsiao et K.C. Hsia. Its structure was established as （2329-9,19-cycloart-23-ene-3α,25-diol 1 through chemical and spectroscopic studies including 2D NMR. Another known triterpenoid 9,19-cycloart-25-ene-313,24ζ-diol 2 was also isolated.
基金a grant from the State Ad-ministration of Traditional Chinese Medicine of China (No. D2X004A)
文摘A reverse-phase high pressure liquid chromatography （HPLC） method with evaporative light scattering detection （ELSD） has been developed for the quantitative analysis of hupehenine in the total alkaloids from Fritillaria hupehensis. Samples were analyzed on a reverse-phase column （Hypersil C-18） with a mobile phase of methanol：water：chloroform： triethylamine （85：15：1：0.6）. The ELSD was set at the drift tube temperature of 68.3℃ and gas flow rate of 1.8 L/min. Hupehenine＇s retention time was 13.7 min with an asymmetry factor of 1.2. The validity of the method has been verified with linearity, limit of detection, accuracy and precision. The logarithmic linear curve was obtained from 8.936 to 134.04 μg/mL （r=0.9993）. The detection limit （S/N〉3） of hupehenine was 1.79 μg/mL on the column. Intra-day RSD was 1.42% and inter-day RSD was 2.26% （3 days within a week）. The average recovery of hupehenine was 101.50%, and RSD was 1.62%.
文摘A new highly conjugated alkaloid of veratramine type, 22S,25S,5α-veratramine-7(8),12(14)-diene-3β,13β,23β-triol-6-one (1), was isolated from the bulbs of Fritillaria hupehensis Hsiao et K.C. Hsia. Its structure was determined on the basis of spectroscopic evidences.
基金Project supported by the National Natural Science Foundation of China （No. 30572313） and Great Foundation on Society Development of China, Hubei Provincial Science ＆ Technology Department （No. 2003AA302B08）.Acknowledgements We gratefully acknowledge Dr. Xiao Wei-Lie （Kunming Institute of Botany, Chinese Academy of Sciences, Kunming） for the technical support with 2D NMR measurements.
文摘Phytochemical investigation of the bulbs of Fritillaria hupehensis resulted in the isolation and structural elucidation of a new highly conjugated alkaloid of veratramine type identified as 3β,23β-dihydroxy-7,12（14）-dien-5α- veratramin-6-one （1）, together with two known alkaloids, ebeinine （2） and zhebeinine （3）, which were isolated for the first time from F. hupehensis. The structures of alkaloids 1-3 were established by extensive 1D and 2D NMR spectral analyses.
文摘湖北贝母为传统中药,然而《Flora of China》将其基原植物湖北贝母Fritillaria hupehensis归并于天目贝母F.monantha项下。该实验采用分子系统学方法,以川百合Lilium davidii为外类群,用核基因ITS序列和叶绿体基因rpl16序列、matK序列等3个片段对湖北贝母及其近缘类群天目贝母F.monantha、安徽贝母F.anhuiensis等进行联合建树分析,对湖北贝母植物的系统位置进行了探讨,为湖北贝母药材的安全使用提供分子证据。结果显示,分子系统树上,3种贝母各自的居群聚为一支,之后天目贝母与安徽贝母聚为一支,最后与湖北贝母聚为一支。表明湖北贝母与天目贝母的亲缘关系可能要远于安徽贝母与天目贝母之间的关系,因此不适宜将湖北贝母归并于天目贝母。
