7,4′-二甲氧基-3-羟基黄酮 | 13198-99-7

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 黄酮类化合物
• 中文名称: 7,4′-二甲氧基-3-羟基黄酮
• 英文名称: 3-hydroxy-7-methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one
• 英文别名: 7,4′-dimethoxy-3-hydroxyflavone；3-hydroxy-7-methoxy-2-(4-methoxyphenyl)chromen-4-one
• CAS: 13198-99-7
• 化学式: C₁₇H₁₄O₅
• 分子量: 298.295
• InChiKey: IFHXSMSQHPVVSF-UHFFFAOYSA-N

物化性质

• 熔点：
  192-193 °C
• 沸点：
  476.8±45.0 °C(Predicted)
• 密度：
  1.342±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  65
• 氢给体数：
  1
• 氢受体数：
  5

ADMET

代谢

3-羟基-7,4p-二甲氧基黄酮已知的人类代谢物包括(2S,3S,4S,5R)-3,4,5-三羟基-6-[7-甲氧基-2-(4-甲氧基苯基)-4-氧代色酮-3-基]氧杂环己烷-2-羧酸。

3-Hydroxy-7,4p-dimethoxyflavone has known human metabolites that include (2S,3S,4S,5R)-3,4,5-trihydroxy-6-[7-methoxy-2-(4-methoxyphenyl)-4-oxochromen-3-yl]oxyoxane-2-carboxylic acid.

来源:NORMAN Suspect List Exchange

安全信息

• 海关编码：
  2914509090
• WGK Germany：
  3

反应信息

• 作为反应物：
  描述：

  7,4′-二甲氧基-3-羟基黄酮 在 potassium carbonate 作用下， 以 丙酮 为溶剂， 生成
  参考文献：
  名称：

  Bhandari; Sodani; Sharma, Journal of the Indian Chemical Society, 2006, vol. 83, # 11, p. 1113 - 1117

  摘要：

  DOI：
• 作为产物：
  描述：

  丹皮酚 在 双氧水 、 potassium hydroxide 、 sodium hydroxide 作用下， 以 甲醇 、 乙醇 、 水 为溶剂， 生成 7,4′-二甲氧基-3-羟基黄酮
  参考文献：
  名称：

  黄酮醇和3-甲基醚衍生物对人白血病细胞的合成及其对细胞生存力的影响

  摘要：

  类黄酮是多酚化合物，具有多种生物活性，被认为是潜在的抗肿瘤药。在这里，我们评估了选定的合成类黄酮对人类白血病细胞系的抗增殖活性。我们发现4'-溴黄酮醇（黄酮醇3）是最有效的。该化合物以浓度依赖性的方式抑制增殖，诱导细胞凋亡，并在S期阻断细胞周期进程。发现细胞死亡与多种胱天蛋白酶的裂解和激活，丝裂原激活的蛋白激酶途径的激活以及与肿瘤坏死因子相关的两个死亡受体（死亡受体4和死亡受体5）的上调相关。凋亡诱导配体。此外，与单一治疗相比，使用4'-溴黄酮醇和TRAIL的联合治疗导致细胞毒性增加。这些结果为进一步探索该组合在癌症治疗中的潜在应用提供了基础。

  DOI：

  10.1016/j.ejmech.2014.07.010

文献信息

• Accurate Prediction of Glucuronidation of Structurally Diverse Phenolics by Human UGT1A9 Using Combined Experimental and In Silico Approaches
  作者：Baojian Wu、Xiaoqiang Wang、Shuxing Zhang、Ming Hu

  DOI：10.1007/s11095-012-0666-z

  日期：2012.6

  Catalytic selectivity of human UGT1A9, an important membrane-bound enzyme catalyzing glucuronidation of xenobiotics, was determined experimentally using 145 phenolics and analyzed by 3D-QSAR methods. Catalytic efficiency of UGT1A9 was determined by kinetic profiling. Quantitative structure activity relationships were analyzed using CoMFA and CoMSIA techniques. Molecular alignment of substrate structures was made by superimposing the glucuronidation site and its adjacent aromatic ring to achieve maximal steric overlap. For a substrate with multiple active glucuronidation sites, each site was considered a separate substrate. 3D-QSAR analyses produced statistically reliable models with good predictive power (CoMFA: q2 = 0.548, r2 = 0.949, r pred 2  = 0.775; CoMSIA: q2 = 0.579, r2 = 0.876, r pred 2  = 0.700). Contour coefficient maps were applied to elucidate structural features among substrates that are responsible for selectivity differences. Contour coefficient maps were overlaid in the catalytic pocket of a homology model of UGT1A9, enabling identification of the UGT1A9 catalytic pocket with a high degree of confidence. CoMFA/CoMSIA models can predict substrate selectivity and in vitro clearance of UGT1A9. Our findings also provide a possible molecular basis for understanding UGT1A9 functions and substrate selectivity.

  通过实验使用145种酚类化合物，并通过3D-QSAR方法分析，确定了人UGT1A9的催化选择性。UGT1A9是一种重要的膜结合酶，催化外源性物质的葡糖醛酸化反应。通过动力学分析确定了UGT1A9的催化效率。使用CoMFA和CoMSIA技术分析了定量结构活性关系。通过将葡糖醛酸化位点及其相邻的芳香环重叠，实现了底物结构的最大立体重叠。对于具有多个活性葡糖醛酸化位点的底物，每个位点被视为单独的底物。3D-QSAR分析产生了统计上可靠的模型，具有良好的预测能力（CoMFA：q2=0.548，r2=0.949，r pred 2=0.775；CoMSIA：q2=0.579，r2=0.876，r pred 2=0.700）。通过轮廓系数图阐明了底物中负责选择性差异的结构特征。将轮廓系数图叠加在UGT1A9的同源模型的催化口袋中，能够高度自信地识别UGT1A9的催化口袋。CoMFA/CoMSIA模型可以预测底物的选择性和UGT1A9的体外清除率。我们的发现还提供了理解UGT1A9功能和底物选择性的可能分子基础。
• Design of Development Candidate eFT226, a First in Class Inhibitor of Eukaryotic Initiation Factor 4A RNA Helicase
  作者：Justin T. Ernst、Peggy A. Thompson、Christian Nilewski、Paul A. Sprengeler、Samuel Sperry、Garrick Packard、Theodore Michels、Alan Xiang、Chinh Tran、Christopher J. Wegerski、Boreth Eam、Nathan P. Young、Sarah Fish、Joan Chen、Haleigh Howard、Jocelyn Staunton、Jolene Molter、Jeff Clarine、Andres Nevarez、Gary G. Chiang、Jim R. Appleman、Kevin R. Webster、Siegfried H. Reich

  DOI：10.1021/acs.jmedchem.0c00182

  日期：2020.6.11

  component of the eIF4F complex, which regulates cap-dependent protein synthesis. The flavagline class of natural products (i.e., rocaglamide A) has been shown to inhibit protein synthesis by stabilizing a translation–incompetent complex for select messenger RNAs (mRNAs) with eIF4A. Despite showing promising anticancer phenotypes, the development of flavagline derivatives as therapeutic agents has been hampered

  蛋白质翻译失调是许多癌症发病机理的关键驱动因素。真核生物起始因子4A（eIF4A）是ATP依赖的DEAD-box RNA解旋酶，是eIF4F复合体的重要组成部分，该复合体调节帽依赖性蛋白质的合成。天然产品的黄精油类（即，rocaglamide A）已被证明可以通过稳定带有eIF4A的特定信使RNA（mRNA）的翻译无能力复合物来抑制蛋白质合成。尽管显示出有希望的抗癌表型，但由于不良的类药物性质和合成复杂性，阻碍了黄酮衍生物作为治疗剂的开发。利用基于配体的设计策略进行了重点研究，以鉴定具有优化的理化性质的化学型。此外，进行了详细的机理研究，以进一步阐明mRNA序列的选择性，关键的调控靶基因以及相关的抗肿瘤表型。这项工作导致了eFT226的设计 （Zotatifin），具有出色的理化特性和显着的抗肿瘤活性的化合物，可支持临床发展。
• Three-Dimensional Quantitative Structure-Activity Relationship Studies on UGT1A9-Mediated 3-O-Glucuronidation of Natural Flavonols Using a Pharmacophore-Based Comparative Molecular Field Analysis Model
  作者：Baojian Wu、John Kenneth Morrow、Rashim Singh、Shuxing Zhang、Ming Hu

  DOI：10.1124/jpet.110.175356

  日期：2011.2

  Glucuronidation is often recognized as one of the rate-determining factors that limit the bioavailability of flavonols. Hence, design and synthesis of more bioavailable flavonols would benefit from the establishment of predictive models of glucuronidation using kinetic parameters [e.g., K m, V max, intrinsic clearance (CLint) = V max/ K m] derived for flavonols. This article aims to construct position (3-OH)-specific comparative molecular field analysis (CoMFA) models to describe UDP-glucuronosyltransferase (UGT) 1A9-mediated glucuronidation of flavonols, which can be used to design poor UGT1A9 substrates. The kinetics of recombinant UGT1A9-mediated 3-O-glucuronidation of 30 flavonols was characterized, and kinetic parameters ( K m, V max, CLint) were obtained. The observed K m, V max, and CLint values of 3-O-glucuronidation ranged from 0.04 to 0.68 μM, 0.04 to 12.95 nmol/mg/min, and 0.06 to 109.60 ml/mg/min, respectively. To model UGT1A9-mediated glucuronidation, 30 flavonols were split into the training (23 compounds) and test (7 compounds) sets. These flavonols were then aligned by mapping the flavonols to specific common feature pharmacophores, which were used to construct CoMFA models of V max and CLint, respectively. The derived CoMFA models possessed good internal and external consistency and showed statistical significance and substantive predictive abilities ( V max model: q 2 = 0.738, r 2 = 0.976, r pred2 = 0.735; CLint model: q 2 = 0.561, r 2 = 0.938, rpred2 = 0.630). The contour maps derived from CoMFA modeling clearly indicate structural characteristics associated with rapid or slow 3-O-glucuronidation. In conclusion, the approach of coupling CoMFA analysis with a pharmacophore-based structural alignment is viable for constructing a predictive model for regiospecific glucuronidation rates of flavonols by UGT1A9.

  葡糖醛酸化通常被认为是限制类黄酮醇生物利用度的决定速率的因素之一。因此，利用类黄酮醇的动力学参数（如 Km、Vmax、内在清除率（CLint）= Vmax/ Km）建立葡糖醛酸化的预测模型，将有利于设计合成更多生物可利用的类黄酮醇。本文旨在构建针对3-OH位点的特定比较分子场分析（CoMFA）模型，描述UDP-葡糖醛酸基转移酶（UGT）1A9介导的类黄酮醇葡糖醛酸化过程，该模型可用于设计不佳的UGT1A9底物。我们对重组UGT1A9介导的30种类黄酮醇的3-O-葡糖醛酸化动力学进行了表征，并获得了动力学参数（Km、Vmax、CLint）。观察到的3-O-葡糖醛酸化Km、Vmax和CLint值分别在0.04至0.68 μM、0.04至12.95 nmol/mg/min和0.06至109.60 ml/mg/min之间。为了模拟UGT1A9介导的葡糖醛酸化，我们将30种类黄酮醇分为训练集（23个化合物）和测试集（7个化合物）。然后通过将类黄酮醇映射到特定的共同特征药效团来对齐，从而构建了Vmax和CLint的CoMFA模型。得到的CoMFA模型具有良好的内在和外在一致性，显示出统计学意义和实质性的预测能力（Vmax模型：q2 = 0.738，r2 = 0.976，rpred2 = 0.735；CLint模型：q2 = 0.561，r2 = 0.938，rpred2 = 0.630）。从CoMFA建模得到的轮廓图清晰地表明了与快速或慢速3-O-葡糖醛酸化相关的结构特征。总之，结合CoMFA分析和基于药效团的结构对齐方法是可行的，可以构建用于UGT1A9介导的类黄酮醇区域特异性葡糖醛酸化速率的预测模型。
• Profiling of Flavonol Derivatives for the Development of Antitrypanosomatidic Drugs
  作者：Chiara Borsari、Rosaria Luciani、Cecilia Pozzi、Ina Poehner、Stefan Henrich、Matteo Trande、Anabela Cordeiro-da-Silva、Nuno Santarem、Catarina Baptista、Annalisa Tait、Flavio Di Pisa、Lucia Dello Iacono、Giacomo Landi、Sheraz Gul、Markus Wolf、Maria Kuzikov、Bernhard Ellinger、Jeanette Reinshagen、Gesa Witt、Philip Gribbon、Manfred Kohler、Oliver Keminer、Birte Behrens、Luca Costantino、Paloma Tejera Nevado、Eugenia Bifeld、Julia Eick、Joachim Clos、Juan Torrado、María D. Jiménez-Antón、María J. Corral、José M Alunda、Federica Pellati、Rebecca C. Wade、Stefania Ferrari、Stefano Mangani、Maria Paola Costi

  DOI：10.1021/acs.jmedchem.6b00698

  日期：2016.8.25

  Flavonoids represent a potential source of new antitrypanosomatidic leads. Starting from a library of natural products, we combined target-based screening on pteridine reductase 1 with phenotypic screening on Trypanosoma brucei for hit identification. Flavonols were identified as hits, and a library of 16 derivatives was synthesized. Twelve compounds showed EC50 values against T. brucei below 10 μM

  黄酮类化合物代表了新的抗胰蛋白酶前导物的潜在来源。从天然产物库开始，我们将基于靶点的蝶呤还原酶1筛选与基于布鲁氏锥虫的表型筛选相结合，以进行命中鉴定。黄酮醇被鉴定为命中，并合成了16种衍生物的文库。十二种化合物对布鲁氏杆菌的EC 50值低于10μM。四个X射线晶体结构和对接研究解释了观察到的结构与活性之间的关系。选择化合物2（3，6-二羟基-2-（3-羟基苯基）-4 H-铬-4--4-酮）进行药代动力学研究。化合物2的包封与游离化合物相比，PLGA纳米颗粒或环糊精中的α-己内酰胺导致较低的体外毒性。与甲氨蝶呤的组合研究表明，化合物13（3-羟基-6-甲氧基-2-（4-甲氧基苯基）-4 H-铬烯-4-酮）在浓度为1.3μM时具有最高的协同作用，剂量降低了11.7倍指数，对宿主细胞无毒性。我们的结果为进一步的化学修饰提供了基础，这些化学修饰旨在鉴定出对PTR1表现出更高效力并提高了代谢稳定性的新型抗胰体分裂素药物。
• Synthesis of a library of glycosylated flavonols
  作者：Zhitao Li、George Ngojeh、Paul DeWitt、Zhi Zheng、Min Chen、Brendan Lainhart、Vincent Li、Peter Felpo

  DOI：10.1016/j.tetlet.2008.10.032

  日期：2008.12

  products isolated from plants. Some glycosylated flavonols showed very interesting biological activities. A library of flavonols has been made through Algar-Flynn-Oyamada reaction from 2'-hydroxyacetophenones and benzaldehydes. Glycosylation of these flavonols with various glycosyl donors affords a library of glycosylated flavonols. These compounds are potentially useful pharmacologically active compounds

  黄酮醇是从植物中分离出来的一类重要的天然产物。一些糖基化的黄酮醇表现出非常有趣的生物学活性。通过Algar-Flynn-Oyamada反应，由2'-羟基苯乙酮和苯甲醛制得黄酮醇。这些黄酮醇与各种糖基供体的糖基化提供了糖基化黄酮醇的文库。这些化合物可能是有用的药理活性化合物，并将对其生物学活性进行研究。