6,4'-Dimethoxy-3-hydroxyflavone | 93176-02-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 黄酮类化合物
• 英文名称: 6,4'-Dimethoxy-3-hydroxyflavone
• 英文别名: 3-hydroxy-6-methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one；3-hydroxy-6,4'-dimethoxyflavone；6,4'-dimethoxyflavonol；3-hydroxy-6-methoxy-2-(4-methoxy-phenyl)-chromen-4-one；3-Hydroxy-6-methoxy-2-(4-methoxy-phenyl)-chromen-4-on；3-hydroxy-6-methoxy-2-(4-methoxyphenyl)chromen-4-one
• CAS: 93176-02-4
• 化学式: C₁₇H₁₄O₅
• 分子量: 298.295
• InChiKey: RIRAMOVDGJDPRU-UHFFFAOYSA-N

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

来源:NORMAN Suspect List Exchange

反应信息

• 作为反应物：
  描述：

  6,4'-Dimethoxy-3-hydroxyflavone 以3%的产率得到
  参考文献：
  名称：

  HAMADO MUTSUMI; KUROSAWA KAZU, BULL. CHEM. SOC. JAP., 1980, 53, NO 9, 2630-2633

  摘要：

  DOI：
• 作为产物：
  描述：

  (2E)-1-(2-hydroxy-5-methoxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one 在 双氧水 、 potassium hydroxide 作用下， 以 甲醇 、 水 为溶剂， 生成 6,4'-Dimethoxy-3-hydroxyflavone
  参考文献：
  名称：

  A Structure Activity Relationship Study of 3,4’-Dimethoxyflavone for ArlRS Inhibition in Staphylococcus aureus

  摘要：

  耐甲氧西林金黄色葡萄球菌（MRSA）引起的感染很难治疗，因为它们对许多  内酰胺类抗生素都有耐药性，而且毒性因子的排泄高度协调。其中一种方法是...

  DOI：

  10.1039/d3ob00123g

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。
• 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。
• Exploring the anti-breast cancer potential of flavonoid analogs
  作者：Vanrajsinh Thakor、Mayur Poddar、Sumit Dey、S. N. Manjula、SubbaRao V. Madhunapantula、Rahul Pawara、Harun M. Patel、Malleshappa N. Noolvi

  DOI：10.1039/c6ra14428d

  日期：——

  In the course of our search for new antitumor agents for breast cancer, novel flavone derivatives were synthesized, characterized and examined for their antitumor activities against breast cancer cell lines.

  在寻找新的乳腺癌抗肿瘤药物的过程中，合成了新的黄酮衍生物，并对其进行了表征，并检测其对乳腺癌细胞系的抗肿瘤活性。
• Reaction of chromous chloride with 3-nitroflavenes. A novel synthesis of flavonols
  作者：T. Sudhakara Rao、H.H. Mathur、G.K. Trivedi

  DOI：10.1016/s0040-4039(01)81626-9

  日期：1984.1

  Reaction of Chromium(II) chloride with 3-nitroflavene yields flavonol.

  氯化铬与三硝基黄酮反应生成黄酮醇。