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1.
《中药材》2010,(3)
目的:对白背三七地上部分进行化学成分研究。方法:应用硅胶柱、薄层制备、葡聚糖凝胶等色谱技术分离纯化,应用波谱技术确定化合物的结构。结果:从白背三七中分离得到了10个化合物,分别为:2-(1,′2,′3,′4′-四羟基丁基)-6-(2,″3,″4″-三羟基丁基)-吡嗪(1)、掌叶半夏碱庚(2)、烟酸(3)、5-羟基吡啶羧酸(4)、5-羟基吡啶-2-甲酸甲酯(5)、腺苷(6)、尿苷(7)、豆甾醇葡萄糖苷(8)、对苯二甲酸二丁酯(9)、绿原酸甲酯(10)。结论:化合物1、2、5、9、10为首次从该属植物中分离得到,化合物3、4为首次从该植物中分离得到。  相似文献   

2.
姜泓  白丽萍  康廷国 《中药材》2006,29(11):1194-1195
从紫穗槐Am orpha fruticosaL.的果实中又分离得到4个化合物:5-羟基-7,4′-二甲氧基异黄酮(5-hydrox-y-7,4-′d im ethoxyisoflavone)(Ⅳ);7,2,′4′5′-四甲氧基异黄酮(7,2,′4,′5-t′etrom ethoxy-isoflavone)(Ⅴ);β-谷甾醇(β-sitosterol)(Ⅵ);正三十碳醇(n-triacontaol)(Ⅶ)。所有化合物均为首次从中国产紫穗槐果实中得到,其中化合物Ⅳ,Ⅵ和Ⅶ为首次从该属植物中获得。  相似文献   

3.
臭灵丹化学成分的研究   总被引:6,自引:2,他引:4  
目的:研究臭灵丹的化学成分。方法:采用硅胶、ODS和Sephadex LH-20等色谱手段分离臭灵丹乙醇提取物的化学成分;根据化学反应和波谱数据鉴定所得化合物结构。结果:从中分离得到19个化合物,分别鉴定为臭灵丹二醇(1),冬青酸(2),洋艾素(3),金腰素乙(4),3,5-二羟基-6,7,3′,4′-四甲氧基黄酮(5),猫眼草酚(6),5,6,4′-三羟基-3,7-二甲氧基黄酮(7),槲皮素(8),柽柳素(9),万寿菊素(10),槲皮素-3-O-β-D-半乳吡喃糖苷(11),万寿菊素-3-O-β-D-吡喃葡萄糖苷(12),槲皮素-3-O-(6-p-香豆酰基)-β-D-吡喃葡萄糖苷(13),4′,5,7-三羟基-6-甲氧基黄酮-3-O-β-D-芸香糖苷(14),山柰酚-3-O-β-D-吡喃葡萄糖苷(15)、豆甾醇(16)、豆甾醇-3-O-β-D-吡喃葡萄糖苷(17)、邻羟基苯甲酸(18)、β-谷甾醇(19)。结论:化合物5,7,9~15,17~18为首次从该植物中分离得到,化合物7的13C-NMR数据由本文首次报道。  相似文献   

4.
《中药材》2019,(4)
目的:研究广西产拳卷地钱Marchantia convoluta Gao et Chang的化学成分。方法:拳卷地钱的80%乙醇提取物采用硅胶、Sephadex LH-20进行分离纯化,根据理化性质及波谱数据鉴定所得化合物的结构。结果:从广西产拳卷地钱中分离纯化得到13个化合物,分别鉴定为:正十六烷酸(1)、β-谷甾醇(2)、豆甾醇(3)、5-羟基-7,4′-二甲氧基黄酮(4)、5-羟基-7,4′-二甲氧基二氢黄酮(5)、芹菜素(6)、槲皮素(7)、β-胡萝卜苷(8)、5-羟基-7-甲氧基-2-甲基色原酮(9)、芹菜素-7-O-β-D-葡萄糖苷(10)、木犀草素(11)、熊果酸(12)、5,7-二羟基-6,4′-二甲氧基黄酮(13)。结论:其中,化合物1、4~13为首次从该植物中分离得到。  相似文献   

5.
兴安黄芪化学成分研究   总被引:1,自引:0,他引:1  
目的:研究兴安黄芪的化学成分。方法:用硅胶柱色谱、重结晶及半制备HPLC进行分离纯化,根据理化性质和光谱数据进行结构鉴定。结果:得到6个单体化合物,分别为7,2′-二羟基-3,′4′-二甲氧基异黄烷(1),2′-羟基-3,′4′-二甲氧基异黄烷-7-O--βD-葡萄糖苷(2),8,2′-二羟基-7,4′-二甲氧基异黄烷(3),7-羟基-4′-甲氧基异黄酮(4),7,3′-二羟基-4′-甲氧基异黄酮(5),9,10-二甲氧基紫檀烷-3-O--βD-葡萄糖苷(6)。结论:这些化合物均系首次从该植物中得到。  相似文献   

6.
《中成药》2019,(9)
目的研究中华小苦荬Ixeriduim chinese的化学成分。方法中华小苦荬95%乙醇提取物采用硅胶、Sephadex LH-20进行分离纯化,根据理化性质及波谱数据鉴定所得化合物的结构。结果从中分离得到13个化合物,分别鉴定为槲皮素(1)、5,7,4′-三羟基-6,8-二甲氧基黄酮(2)、木犀草素(3)、β-谷甾醇(4)、蒲公英萜醇(5)、芹菜素-7-O-β-D-葡萄糖苷(6)、β-胡萝卜苷(7)、蒲公英甾醇(8)、芹菜素(9)、豆甾醇(10)、蒲公英甾醇乙酸酯(11)、木犀草苷(12)、棕榈酸(13)。结论化合物2、5、8、11~13为首次从该植物中分离得到。  相似文献   

7.
鄂西大蓟茎叶化学成分研究   总被引:1,自引:1,他引:0  
毛瑞华  钟志宏  吴文明  刘叶  阮汉利 《中草药》2016,47(13):2236-2240
目的研究鄂西大蓟Cirsium henryi茎叶的化学成分。方法使用多种柱色谱技术对鄂西大蓟茎叶95%乙醇提取物的石油醚、醋酸乙酯和正丁醇部位进行分离纯化,根据波谱数据和理化性质确定各化合物的结构。结果从鄂西大蓟茎叶石油醚部位分离得到7个化合物,分别鉴定为硬脂酸(1)、二羟丙基软脂酸酯(2)、软脂酸(3)、蒲公英甾醇(4)、伪蒲公英甾醇(5)、蒲公英甾醇乙酸酯(6)、β-谷甾醇(7);从醋酸乙酯部位分离得到6个化合物,分别鉴定为胡萝卜苷(8)、原儿茶酸(9)、蒙花苷(11)、芹菜素(12)、槲皮苷(13)、金合欢素(14);从正丁醇部位分离得到3个化合物,分别鉴定为尿嘧啶(10)、金合欢素-7-O-β-D-葡萄糖苷(15)、4-羟基-3,5-二甲氧基苯甲酸(16)。结论化合物3、10~16为首次从该植物中分离得到,化合物10、13、16为首次从蓟属植物中分离得到。  相似文献   

8.
运用硅胶柱色谱、MCI凝胶柱色谱和制备型HPLC等色谱技术从高粱根提取物中分离纯化得到11个化合物,并通过NMR和MS波谱技术鉴定其结构为4-[(6′-O-β-D-吡喃葡萄糖)氧基]羟基苯乙酸环二聚内酯(1)、β-谷甾醇(2)、豆甾醇(3)、胡萝卜苷(4)、对甲氧基肉桂酸(5)、紫杉氰糖苷(6)、绿原酸(7)、对羟基苯甲醛(8)、琥珀酸(9)、反式对羟基肉桂酸(10)、obtusalin(11)。化合物4,5,9~11为首次从高粱中分离得到,化合物1为首次发现的以对羟基苯乙酸酯葡萄糖苷反向聚合形成的拥有24环的二聚双内酯酚苷,命名为sorgholide A。  相似文献   

9.
大血藤的化学成分研究(Ⅱ)   总被引:4,自引:1,他引:3       下载免费PDF全文
目的研究大血藤Sargentodoxacuneata的化学成分。方法应用多种色谱技术对大血藤进行分离纯化,并通过NMR等波谱方法鉴定化合物的结构。结果从大血藤乙醇提取物的正丁醇和醋酸乙酯部位分离得到13个化合物,分别鉴定为毛柳苷(1)、(-)-表儿茶素(2)、3,4-二羟基苯乙醇(3)、原儿茶酸(4)、N-(对羟基苯乙基)阿魏酸酰胺(5)、3,4-二羟基苯乙醇葡萄糖苷(6)、野菰苷(7)、4-羟苯基-乙基-6-O-(E)-咖啡酰基-β-D-葡萄糖苷(8)、绿原酸乙酯(9)、lyoniresin-4′-yl-β-glucopyranoside(10)、2-(3′,4′-二羟苯基)-1,3-胡椒环-5-醛(11)、丁香酸葡萄糖苷(12)、8,8′-bis-(dihydroconiferyl)-diferuloylate(13)。结论化合物7~13均为首次从该植物中分离得到。  相似文献   

10.
目的对白背三七Gynura divaricata的地上部分进行分离、鉴定。方法应用反复硅胶柱色谱、薄层制备色谱、葡聚糖凝胶等色谱技术分离纯化,应用波谱技术确定化合物的结构。结果从白背三七地上部分分离得到了11个化合物,分别为山柰酚(1)、紫云英苷(2)、烟花苷(3)、山柰酚-3,7-O-双-β-D-吡喃葡萄糖苷(4)、山柰酚-5-O-(6″-O-乙酰基)-β-D-吡喃葡萄糖苷(5)、4-羟基-5-羟甲基-γ-丁内酯(6)、β-谷甾醇葡萄糖苷-6′-O-十七烷酸酯(7)、β-谷甾醇(8)、豆甾醇(9)、胡萝卜苷(10)、正二十烷(11)。结论化合物4~7为首次从该属植物中分离得到,化合物1,2为首次从该植物中分离得到。  相似文献   

11.
目的研究大蓟提取液对癌细胞生长的抑制作用。方法细胞形态观察和活细胞计数法研究大蓟提取液对人白血病细胞K562,肝癌细胞HepG2,宫颈癌细胞Hela,胃癌细胞BGC823生长的抑制作用。结果大蓟提取液可使4种癌细胞形态上发生皱缩、变圆、脱壁、碎裂等变化,生长受到明显抑制,抑制率最高可达92.34%。结论大蓟有确切的抑癌作用。并与中医的气血理论、药物归经理论和肝肾同源理论相一致,在体外细胞水平上也有良好体现,对实验室手段研究中医药同样有着重要指导意义。  相似文献   

12.
九节菖蒲化学成分研究   总被引:7,自引:0,他引:7  
邹忠杰  杨峻山 《中药材》2008,31(1):49-51
目的研究九节菖蒲的化学成分.方法对九节菖蒲乙醇提取物的正丁醇萃取部分进行色谱分离,根据光谱数据和理化性质确定各化合物的结构.结果分离并鉴定了6个化合物,分别为升麻醇木糖苷(1),升麻醇-3-O-β-D-吡喃木糖(1→3)-β-D-吡喃木糖苷(2),( )异落叶松脂醇-9-O-β-D-葡萄糖苷(3),腺苷(4),尿苷(5),β-D-葡萄糖甲醇苷(6).结论6个化合物均为首次从本属植物中分离得到.  相似文献   

13.
A new furofuran lignan, styraxlignolide B (1), and four new dibenzyl-gamma-butyrolactone lignans, styraxlignolides C-F (2-5), were isolated from the EtOAc-soluble fraction of stem bark of Styrax japonica. Known compounds, taraxerol (6), syringin (7), and (-)-pinoresinol glucoside (8), were also obtained. The structures of styraxligonolides B-F were determined as 2alpha-(4'-hydroxy-3'-methoxyphenyl)-6alpha-(3' ',4' '-methylenedioxyphenyl)-8-oxo-3,7-dioxabicyclo[3.3.0]octane 4'-O-(beta-D-glucopyranoside) (1), (2S,3S)-2alpha-(3' '-hydroxy-4' '-methoxybenzyl)-3beta-(4'-hydroxy-3'-methoxybenzyl)-gamma-butyrolactone 4'-O-(beta-D-glucopyranoside) (2), (2S,3S)-2alpha-(4' '-hydroxy-3' '-methoxybenzyl)-3beta-(4'-hydroxy-3'-methoxybenzyl)-gamma-butyrolactone 4'-O-(beta-D-glucopyranoside) (3), (2S,3S)-2alpha-(4' '-hydroxy-3' '-methoxybenzyl)-3beta-(4'-hydroxy-3'-methoxybenzyl)-gamma-butyrolactone 4' '-O-(beta-D-glucopyranoside) (4), and (2S,3S)-2alpha-(3' ',4' '-dimethoxybenzyl)-3beta-(4'-hydroxy-3'-methoxybenzyl)-gamma-butyrolactone 4'-O-(beta-D-glucopyranoside) (5) by spectroscopic means including 2D NMR. Compounds 1-8 were tested in vitro for antioxidant activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals. Styraxlignolide C (2), styraxlignolide D (3), styraxlignolide E (4), and (-)-pinoresinol glucoside (8) exhibited weak radical-scavenging activity in the DPPH assay, with IC50 values of 380, 278, 194, and 260 microM, respectively.  相似文献   

14.
A new flavonoid compound isokaempferide 7-O-beta-d-(6'-methylglucuronide) (1) was isolated from flowers of Cirsium rivulare (Jacq.) All. Its structure was elucidated on the basis of spectroscopic studies (UV, (1)H and (13)C NMR, FABMS). Moreover, five known flavonoid compounds: apigenin 7-(6'-methylglucuronide) (2), hispidulin 7-glucoside (3), isokaempferide 7-glucuronide (4), kaempferol 3-galactoside (5), pectolinarin (6) were isolated from this source for the first time. The antimicrobial activity of aqueous, methanolic and 70% ethanolic extracts of Cirsium rivulare flowers and leaves was also evaluated.  相似文献   

15.
小蓟的化学成分研究   总被引:1,自引:1,他引:0  
目的:研究菊科蓟属植物刺儿菜Cirsium setosum地上部分(小蓟)的化学成分.方法:通过各种柱色谱进行分离纯化,根据理化性质和波谱数据进行结构鉴定.结果:分离并鉴定了9个化合物,分别为伪蒲公英甾醇(1),伪蒲公英甾醇醋酸酯(2),谷甾醇(3),反式对香豆酸二十六醇酯(4),芹菜素(5),异山萘甲黄素(6),胡萝卜苷(7),芦丁(8),蒙花苷(9).结论:化合物2,4,6为首次从小蓟中分离得到.  相似文献   

16.
Acylated flavonol glycosides from the flower of Inula britannica   总被引:15,自引:0,他引:15  
Three new acylated flavonol glycosides, patuletin 7-O-(6' '-isobutyryl)glucoside (1), patuletin 7-O-[6' '-(2-methylbutyryl)]glucoside (2), and patuletin 7-O-(6' '-isovaleryl)glucoside (3), were isolated from the n-BuOH extract of Inula britannica flowers by bioassay-guided fractionation, together with other known flavonoids. The structures were elucidated by 1D and 2D NMR, FABMS, and other spectral analyses. The eight flavonoids, including new compounds (1-3), patulitrin (7), nepitrin (8), axillarin (10), patuletin (11), and luteolin (12), showed profound antioxidant activity in DPPH assay and cytochrome-c reduction assay using HL-60 cell culture system.  相似文献   

17.
G Li  Y Chen 《中国中药杂志》1997,22(9):548-50, 576
Australiside A(1), a new diterpenoid glucoside, was isolated together with thymidine(2), caffeic acid(3), p-coumaric acid(4) and caffeic-beta-D-glucoside(5) from Cuscuta australis. Based on spectral analysis and physico-chemical properties the structures of the above-cited five compounds were identified. The structure of compound 1 was deduced as 4-oic acid-7-oxo-kaurene-6 alpha-O-beta-D-glucoside. Compounds 2, 3, 4 and 5 were obtained from Cuscuta for the first time.  相似文献   

18.
Ten flavonoids belonging to the subclasses of flavones, flavanones and aurones were isolated from methanolic extract of Cirsium palustre leaves after multistep chromatographic separation. Their structures were elucidated with spectroscopic methods. All compounds, except for luteolin 7‐O‐glucoside, were isolated for the first time. Four compounds—eriodictyol 7‐O‐glucoside (6), 6‐hydroxyluteolin 7‐O‐glucoside (11), scutellarein 7‐O‐glucoside (12) and pedalitin (14)—were tested for their effect on collagen expression in normal human dermal fibroblasts. Among them, compound 11 at 40 μM and compound 14, at all concentrations used (1, 20, 40 μM), significantly enhanced the level of total collagen secreted into the medium. Furthermore, compound 11 significantly stimulated type I collagen expression, whereas compound 14 activated type I and III collagen expression at the mRNA level, depending on concentration. MMP‐2 activity was inhibited by all study compounds, with the greatest effect recorded with compound 14 at 20 μM. The lack of effect on collagen content in the medium of compound 6‐ and compound 12‐treated cells, besides an increase in COL1A1 and COL1A2 expression, might be caused by diminished expression of HSP47 gene, resulting in decreased procollagen secretion. Future study of compounds 11 and 14 for their potential therapeutic use in conditions connected with collagen biosynthesis deficiency is required. Copyright © 2014 John Wiley & Sons, Ltd.  相似文献   

19.
 目的 对毛蕊老鹳草的化学成分进行研究。方法 溶剂提取,Sephadex LH-20柱色谱分离,根据化合物理化性质和光 讲数据鉴定其结构。结果分离并鉴定了3个化合物,为鞣花酸(1),山奈酚-3,7-O-a-L-二鼠李糖苷(2),山奈酚-3-O-a-L-阿 拉伯呋喃粉苷-7-O-a-L-鼠李糖苷(3)。结论 化合物2,3为首次从该植物中分离得到。  相似文献   

20.
Three unique pyrano[4,3-c][2]benzopyran-1,6-dione derivatives and a new furo[3,2-c]pyran-4-one, named phelligridins C-F (2-5), together with hispolon (8), (E)-4-(3,4-dihydroxyphenyl)but-3-en-2-one (9), 4-hydroxybenzaldehyde, protocatechualdehyde, syringic acid, protocatechuic acid, caffeic acid, isoergosterone, and octadecyl ferulate were isolated and identified from the ethanolic extract of Phellinus igniarius. Their structures were determined by spectroscopic methods including IR, MS, and 1D and 2D NMR experiments. The structures of the new compounds were characterized as 3-(4-hydroxystyryl)-8,9-dihydroxypyrano[4,3-c]isochromene-4-one (2), 3-(3,4-hydroxystyryl)-8,9-dihydroxypyrano[4,3-c]isochromene-4-one (3), 8,9-dihydroxy-3-[5',6'-dihydroxy-5' '-methyl-3' '-oxo-spiro[fural-2' '(3' 'H),1'-indene]-2'-yl]-1H,6H-pyrano[4,3-c][2]benzopyran-1,6-dione (4), and (3Z)-3-(3,4-dihydroxybenzylidene)-6-(3,4-dihydroxystyryl)-2,3-dihydro-2-methoxy-2-(2-oxo-propyl)furo[3,2-c]pyran-4-one (5), respectively. Some compounds including 2 and 3 showed in vitro selective cytotoxicity against a human lung cancer cell line (A549) and a liver cancer cell line (Bel7402). Possible biogenetic sequences to the formation of 1-9 are postulated.  相似文献   

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