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Flavonoid Glycosides from the Aerial Parts of Polygonatum odoratum(Mill.) Druce Growing in Mongolia 黄酮类苷类化合物的研究蒙古的大麻种植
Pub Date : 2015-07-31 DOI: 10.2174/1874848101508010001
Chunsriimyatav Ganbaatar, M. Gruner, Dumaa Mishig, Regdel Duger, Arndt W. Schmidt, H. Knölker
We describe the isolation, identification, and structural elucidation of natural products from the Mongolian me- dicinal plant Polygonatum odoratum (Mill.) Druce. Six flavonoid glycosides, isorhamnetin-3-O-rutinoside (narcissoside, narcissin) (1), kaempferol-3-O-rutinoside (nicotiflorin) (2), quercetin-3-O-rutinoside (rutin) (3), apigenin-6-C-� -D- glucoside (isovitexin) (4), apigenin-6-C-(2�� -O-� -D-xylopyranosyl-� -D-glucopyranoside) (desmodin) (5), and isovitexin-7- O-� -D-glucoside (saponarin) (6), were isolated from the aerial parts of Polygonatum odoratum (Mill.) Druce. The struc- tures of 1-6 have been confirmed by UV, IR, MS, and NMR ( 1 H, 13 C, COSY, HSQC, HMBC, NOESY, and ROESY) data. Graphical Abstract:
本文报道了蒙古药用植物黄精(Polygonatum odoratum)的分离、鉴定和结构分析。Druce。从黄精的地上部分中分离得到异鼠李苷-3-O-芦丁苷(水仙苷,水仙素)(1)、山奈酚-3-O-芦丁苷(烟花苷)(2)、槲皮素-3-O-芦丁苷(芦丁)(3)、芹菜素-6- c -(异牡荆素)(4)、芹菜素-6- c -(2 -O- - d -木吡喃甲酰基- - d -葡萄糖苷)(去皮苷)(5)和异牡荆素-7- O- - d -葡萄糖苷(皂苷)(6)6个类黄酮苷。Druce。通过紫外、红外、质谱和核磁共振(1h、13c、COSY、HSQC、HMBC、NOESY和ROESY)数据证实了1-6的结构。图形化的简介:
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引用次数: 22
Limnophila (Scrophulariaceae): Chemical and Pharmaceutical Aspects - An Update 林芝属植物(玄参科):化学和药学方面的最新进展
Pub Date : 2015-01-09 DOI: 10.2174/1874848101407010001
G. Brahmachari
The present resume covers an up-to-date literature on Limnophila species. The botanical classification, ethno- pharmacology, and chemical constituents of Limnophila plants, as well as the biological activities and pharmacological applications of both distinct phytochemicals and medicinally active plant materials (formulations, extracts, etc.) are dis- cussed in detail.
目前的简历涵盖了Limnophila物种的最新文献。详细介绍了海藓属植物的植物分类、民族药理学和化学成分,以及不同植物化学物质和药用活性植物材料(制剂、提取物等)的生物活性和药理应用。
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引用次数: 10
Synthetic Approaches Towards Tubulysins and Derivatives Thereof 微管溶素及其衍生物的合成方法
Pub Date : 2013-11-01 DOI: 10.2174/1874848101306010012
U. Kazmaier, Angelika Ullrich, J. Hoffmann
Tubulysins, linear tetrapeptides produced by several strains of myxobacteria, show an extremely high toxicity towards a wide range of cancer cell lines, with IC50 values in the nano or even picomolar range. Therefore, tubulysins and their derivatives might be suitable candidates for the development of antitumor drugs. Several synthetic approaches for tubulysins and derivates have been developed, which will be discussed in the review.
微管溶素是由几种黏菌菌株产生的线性四肽,对多种癌细胞具有极高的毒性,其IC50值在纳米甚至皮摩尔范围内。因此,微管溶素及其衍生物可能是开发抗肿瘤药物的合适候选者。微管溶素及其衍生物的几种合成方法已经发展起来,本文将对其进行讨论。
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引用次数: 12
Antioxidant Polyphenolic Constituents of Vitis × Labruscana cv. 'Isabella' Leaves 枸杞抗氧化多酚类成分研究“伊莎贝拉”叶子
Pub Date : 2013-05-17 DOI: 10.2174/1874848101306010005
S. Pacifico, B. D’Abrosca, M. Scognamiglio, M. Gallicchio, Silvia Galasso, P. Monaco, A. Fiorentino
The polyphenolic composition and antioxidant properties of the methanol leaf extract of Vitis × labruscana cv. 'Isabella' has been performed by means of different spectrophotometric antioxidant methods. Intracellular ROS produc- tion was measured by cell fluorescence after loading with 2',7'-H2DCF-DA. The extract promising efficacy has laid the basis to its phytochemical characterization. Three hydroxycinnamoyl tartaric acids (1-3), isoquercitrin 4, and five flavonol glycuronides (5-9) were isolated from Vitis × labruscana cv. 'Isabella' leaves. Chemical structures were elucidated on the basis of their spectroscopic features. Metabolites 6, 7, and 9, characterized by glucuronic or galacturonic acid methyl es- ter, are described from the genus Vitis for the first time. The metabolites isolated as major constituents were investigated for their DPPH radical scavenging capacity.
研究了葡萄叶甲醇提取物的多酚成分及抗氧化性能。用不同的抗氧化分光光度法对伊莎贝拉进行了测定。2’,7’- h2dcf - da负载后,通过细胞荧光检测细胞内ROS的产生。该提取物具有良好的功效,为其植物化学性质的研究奠定了基础。从葡萄中分离得到3个羟基肉桂基酒石酸(1-3)、异槲皮苷4和5个黄酮醇糖黄酮内酯(5-9)。“伊莎贝拉”叶子。根据其光谱特征对其化学结构进行了分析。以葡萄糖醛酸或半乳糖醛酸甲酯为特征的代谢物6、7和9为首次在葡萄属中发现。研究了作为主要成分的代谢物对DPPH自由基的清除能力。
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引用次数: 16
Evaluating the Anticancer Activity of Hedyotis diffusa Water Extract Against Human Breast Cancer MCF7 Cells 白花蛇舌草水提取物对人乳腺癌MCF7细胞的抗癌活性评价
Pub Date : 2013-04-05 DOI: 10.2174/1874848101306010001
Binbing Ling, Qiulin Dong, Wanpeng Sun, D. Michel, R. Jiao, R. Sammynaiken, Yijiang Zhou, Jian Yang
Hedyotis diffusa has been used to treat cancers in traditional Chinese medicine for many years. Recently, sev- eral anthraquinone compounds were extracted from Hedyotis diffusa and identified as its anticancer ingredients. These compounds are able to induce apoptosis in several types of cancer cells. In this study, we showed that the anticancer activ- ity of Hedyotis diffusa was highly selective, possessing high cytotoxicity towards human breast cancer MCF7 cells but almost no cytotoxicity against the mammary epithelial MCF12A cells. The Hedyotis diffusa water extract also elevated the energy metabolism in both MCF12A and MCF7 cells; but the ATP/ADP ratio was still maintained at about 1.0 in the MCF12A cells to avoid either apoptosis or uncontrolled proliferation. In addition, Sheshecaojing, a health product of He- dyotis diffusa marketed in China, gave a dose-dependent cytotoxic response against the MCF7 cells.
白花蛇舌草在中医中用于治疗癌症已有多年历史。近年来,从白花蛇舌草中提取了几种蒽醌类化合物,并鉴定为其抗癌成分。这些化合物能够诱导几种类型的癌细胞凋亡。在本研究中,我们发现白花蛇舌草具有高度选择性的抗癌活性,对人乳腺癌MCF7细胞具有很高的细胞毒性,但对乳腺上皮细胞MCF12A细胞几乎没有细胞毒性。白花蛇舌草水提取物也能提高MCF12A和MCF7细胞的能量代谢;但MCF12A细胞的ATP/ADP比值仍维持在1.0左右,以避免细胞凋亡或不受控制的增殖。此外,在中国上市的白花荷的保健品舍草精对MCF7细胞具有剂量依赖性的细胞毒性反应。
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引用次数: 2
β-Sitosterol Lithospermate from Salvia Columbariae 从鼠尾草中提取的谷甾醇
Pub Date : 2012-11-16 DOI: 10.2174/1874848101205010013
J. J. D. Adams, S. Tran, Vincent Wong, P. Fontaine, J. Petrosyan
Salvia columbariae extracts were examined for the presence of salvianolic acids by HPLC-MS and NMR. A new salvianolic acid, β-sitosterol lithospermic acid, was found.
采用高效液相色谱-质谱法和核磁共振法测定了丹参提取物中丹酚酸的含量。发现了一种新的丹酚酸,β-谷甾醇石精酸。
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引用次数: 1
Complete Assignment of the 1H and 13C NMR Spectra of the Camelliagenin A and A1-Barrigenol from the seed of Barringtonia asiatica 亚洲巴林桐种子中茶花素A和A1-Barrigenol的1H和13C NMR谱的完整分配
Pub Date : 2012-07-20 DOI: 10.2174/1874848101205010007
R. Rumampuk, E. Pongoh, Ponis Tarigan, A. Herlt, L. Mander
The 1 H and 13 C NMR spectra of camelliagenin A and A1-barrigenol from the seeds of Barringtonia asiatica were completely assigned for the first time by one- and two-dimensional homo- and heteronuclear studies ( 1 H, 13 C, DQCOSY, TOCSY, HMQC, HMBC) at 600 and 150.89 MHz. The article reports standard data that may be important for potential authors needing such information.
利用1 H、13 C、DQCOSY、TOCSY、HMQC、HMBC在600和150.89 MHz下的一维和二维同质核和异核研究,首次对亚洲巴灵顿种子中茶茶花素A和A1-barrigenol的1 H和13 C NMR谱进行了完整的鉴定。本文报告的标准数据对于需要此类信息的潜在作者可能很重要。
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引用次数: 3
Correlation Between Experimental and DFT/GIAO Computed 13C NMR Chemical Shifts of Organic Compounds. Effects of Asymmetry 有机化合物的实验与DFT/GIAO计算13C NMR化学位移的相关性不对称效应
Pub Date : 2012-05-28 DOI: 10.2174/1874848101205010001
E. Borkowski, M. A. Álvarez, F. Suvire, R. Enriz
The experimental 13 C chemical shifts of five different series of organic compounds are compared with pre- dicted 13 C NMR chemical shifts obtained via empirically scaled GIAO shieldings. Our results indicate that the inclusion of a scaling factor allow to obtain an excellent correlation between δcalc and δexp. Although the inclusion of asymmetry im- proves this correlation, such enhancement was not observed for all the 54 tested compounds. We found RMS, a parameter related with the structural feature of the whole molecule, which could indicate the benefits of including asymmetry in these calculations.
将5个不同系列有机化合物的实验13c化学位移与通过经验缩放GIAO屏蔽得到的预测13c核磁共振化学位移进行了比较。我们的结果表明,包含一个比例因子允许δcalc和δexp之间获得一个很好的相关性。虽然不对称的加入证明了这种相关性,但并不是所有54种被测化合物都有这种增强。我们发现了一个与整个分子的结构特征相关的参数,它可以表明在这些计算中包括不对称性的好处。
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引用次数: 3
Biological Activities of Emetine 艾美汀的生物活性
Pub Date : 2011-02-07 DOI: 10.2174/1874848101104010008
Emmanuel S. Akinboye, O. Bakare
Emetine is a natural product alkaloid from ipecac species. It is one of the main active ingredients in ipecac syrup used as emetic, and has been used extensively in phytomedicine as an antiparasitic drug. It inhibits both ribosomal and mitochondrial protein synthesis and interferes with the synthesis and activities of DNA and RNA. For this reason, it has been a vital tool to pharmacologists and has demonstrated many biological properties, such as antiviral, anticancer, antiparasitic and contraceptive activities. Also, it has been reported to cause the up-regulation and down-regulation of a number of genes. Some synthetic analogs with interesting biological activities have been prepared. This article reviews the biological activities of emetine and some emetine derived molecules.
艾美汀是吐根属植物的天然产物生物碱。它是吐根糖浆的主要有效成分之一,作为一种抗寄生虫药物被广泛应用于植物医学。它抑制核糖体和线粒体蛋白质的合成,干扰DNA和RNA的合成和活性。因此,它已成为药理学家的重要工具,并已显示出许多生物学特性,如抗病毒,抗癌,抗寄生虫和避孕活性。此外,据报道,它会导致一些基因的上调和下调。已经制备了一些具有有趣生物活性的合成类似物。本文综述了艾美汀及其衍生分子的生物活性。
{"title":"Biological Activities of Emetine","authors":"Emmanuel S. Akinboye, O. Bakare","doi":"10.2174/1874848101104010008","DOIUrl":"https://doi.org/10.2174/1874848101104010008","url":null,"abstract":"Emetine is a natural product alkaloid from ipecac species. It is one of the main active ingredients in ipecac syrup used as emetic, and has been used extensively in phytomedicine as an antiparasitic drug. It inhibits both ribosomal and mitochondrial protein synthesis and interferes with the synthesis and activities of DNA and RNA. For this reason, it has been a vital tool to pharmacologists and has demonstrated many biological properties, such as antiviral, anticancer, antiparasitic and contraceptive activities. Also, it has been reported to cause the up-regulation and down-regulation of a number of genes. Some synthetic analogs with interesting biological activities have been prepared. This article reviews the biological activities of emetine and some emetine derived molecules.","PeriodicalId":22871,"journal":{"name":"The Open Natural Products Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84049881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 87
Activity and Mode of Action of Flavonoids Compounds Against Intracellular and Extracellular Forms of Trypanosoma cruzi 黄酮类化合物对克氏锥虫胞内和胞外的活性和作用方式
Pub Date : 2011-02-04 DOI: 10.2174/1874848101104010001
Samira Boutaleb-Charki, M. Sánchez-Moreno, Jesús Díaz, M. Rosales, Óscar Huertas, R. Gutiérrez-Sánchez, C. Marín
This study investigates the in vitro activity of a number of flavonoids (kaempferol, quercetin, trifolin, and ace- tyl hyperoside) and their acetylated products: kaempferol acetate, quercetin acetate, trifolin acetate, and acetyl hyperoside acetate) isolated from the aerial parts of plant Consolida oliveriana against epimastigote, amastigote and metacyclic forms of T. cruzi, their cytotoxic against a host Vero-cell line and analyse the possible mechanism by which these molecules act. Acetylated compounds were potent T. cruzi epimastigote growth inhibitors with activity levels similar to those of benzni- dazole, used as the reference drug. These compounds, at the dosage IC25, decreased the ability of metacyclic forms to in- vade mammalian cells, their intracellular replications and transformation in trypomastigotes, with no toxicity to the host cells. The cells treated presented severe damage in their ultrastructure: intense vacuolization, and appearance of lysosomes as well as other residual bodies. The mitochondrial section appeared larger in size, with a swollen matrix. In addition, these compounds changed the excretion of end metabolites, primarily affecting acetate and succinate excretion, possibly by directly influencing certain enzymes or their synthesis. The potent tripanocidal activities of the flavons described here represent an exciting advance in the search for new antiprotozoal agents.
本研究研究了从橄榄木属植物的空中部分分离的黄酮类化合物(山奈酚、槲皮素、三叶草素和ace- tyl金丝桃苷)及其乙酰化产物:醋酸山奈酚、醋酸槲皮素、醋酸三叶草素和醋酸乙酰金丝桃苷)对克氏T.的体外活性,以及它们对宿主vero细胞系的细胞毒性,并分析了这些分子作用的可能机制。乙酰化化合物是有效的克氏拟马鞭毛虫生长抑制剂,其活性水平与作为参比药物的苯并咪唑相似。这些化合物在剂量为IC25时,降低了元环形式对哺乳动物细胞的侵入能力,降低了它们在锥乳线虫细胞内的复制和转化能力,对宿主细胞没有毒性。处理后的细胞超微结构出现了严重的损伤:强烈的空泡化,溶酶体和其他残体出现。线粒体切片变大,基质肿胀。此外,这些化合物改变终代谢物的排泄,主要影响醋酸盐和琥珀酸盐的排泄,可能是通过直接影响某些酶或它们的合成。本文所描述的黄酮类化合物的强效杀三虫活性,在寻找新的抗原虫制剂方面取得了令人兴奋的进展。
{"title":"Activity and Mode of Action of Flavonoids Compounds Against Intracellular and Extracellular Forms of Trypanosoma cruzi","authors":"Samira Boutaleb-Charki, M. Sánchez-Moreno, Jesús Díaz, M. Rosales, Óscar Huertas, R. Gutiérrez-Sánchez, C. Marín","doi":"10.2174/1874848101104010001","DOIUrl":"https://doi.org/10.2174/1874848101104010001","url":null,"abstract":"This study investigates the in vitro activity of a number of flavonoids (kaempferol, quercetin, trifolin, and ace- tyl hyperoside) and their acetylated products: kaempferol acetate, quercetin acetate, trifolin acetate, and acetyl hyperoside acetate) isolated from the aerial parts of plant Consolida oliveriana against epimastigote, amastigote and metacyclic forms of T. cruzi, their cytotoxic against a host Vero-cell line and analyse the possible mechanism by which these molecules act. Acetylated compounds were potent T. cruzi epimastigote growth inhibitors with activity levels similar to those of benzni- dazole, used as the reference drug. These compounds, at the dosage IC25, decreased the ability of metacyclic forms to in- vade mammalian cells, their intracellular replications and transformation in trypomastigotes, with no toxicity to the host cells. The cells treated presented severe damage in their ultrastructure: intense vacuolization, and appearance of lysosomes as well as other residual bodies. The mitochondrial section appeared larger in size, with a swollen matrix. In addition, these compounds changed the excretion of end metabolites, primarily affecting acetate and succinate excretion, possibly by directly influencing certain enzymes or their synthesis. The potent tripanocidal activities of the flavons described here represent an exciting advance in the search for new antiprotozoal agents.","PeriodicalId":22871,"journal":{"name":"The Open Natural Products Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80979338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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The Open Natural Products Journal
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