3-羟基-6-甲基黄酮 | 6971-18-2

• 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: 3-羟基-6-甲基黄酮
• 英文名称: 3-hydroxy-6-methylflavone
• 英文别名: 3-hydroxy-6-methyl-2-phenyl-4H-chromen-4-one；6-methyl-flavonol；6-methylflavonol；3-hydroxy-6-methyl-2-phenyl-chromen-4-one；3-Hydroxy-6-methyl-2-phenyl-chromen-4-on；3-hydroxy-6-methyl-2-phenylchromen-4-one
• CAS: 6971-18-2
• 化学式: C₁₆H₁₂O₃
• 分子量: 252.269
• InChiKey: KLGALCMPMFKGDQ-UHFFFAOYSA-N

物化性质

• 熔点：
  198 °C(Solv: acetic acid (64-19-7))
• 沸点：
  421.2±45.0 °C(Predicted)
• 密度：
  1.324±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  19
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.06
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

ADMET

代谢

3-羟基-6-甲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-甲基-4-氧代-2-苯基色烯-3-基)氧杂环己烷-2-羧酸。

3-Hydroxy-6-methylflavone has known human metabolites that include (2S,3S,4S,5R)-3,4,5-trihydroxy-6-(6-methyl-4-oxo-2-phenylchromen-3-yl)oxyoxane-2-carboxylic acid.

来源:NORMAN Suspect List Exchange

安全信息

• 海关编码：
  2914400090

反应信息

• 作为反应物：
  描述：

  3-羟基-6-甲基黄酮 在 劳森试剂 作用下， 以 甲苯 为溶剂， 反应 4.0h， 生成
  参考文献：
  名称：

  一种CO靶向递送系统及其构建方法与应用

  摘要：

  本发明公开了一种CO靶向递送系统及其构建方法与应用，属于纳米材料CO靶向递送的技术领域。本发明纳米粒包含有一氧化碳前药和草酸酯或其聚合物，通过以下方法制备得到：将草酸酯或其聚合物和一氧化碳前药溶于二氯甲烷中，之后加入乳化剂并超声，减压蒸馏得到纳米粒。本发明为了规避光对机体组织穿透性差的缺陷，利用化学能来激发Photo‑CORM释放CO，H2O2与不同取代的草酸酯反应，会生成一个处于激发态的高能中间体过氧化草酸酯，这个高能中间体通过化学能量转移给Photo‑CORM，激发后者到激发态而释放CO，最终实现靶向递送的目的。

  公开号：

  CN113559071B
• 作为产物：
  描述：

  2'-hydroxy-5'-methylchalcone 在 双氧水 、 potassium hydroxide 作用下， 以 乙醇 、 水 为溶剂， 反应 3.0h， 生成 3-羟基-6-甲基黄酮
  参考文献：
  名称：

  Absorption and Fluorescent Studies of 3-Hydroxychromones

  摘要：

  已经进行了各种取代的3-羟基色酮的合成和光谱研究。发现了合成的 3-羟基色酮 (3-HC) 的结构基序与其荧光特性之间的关键关系。 4'位被给电子基团取代的色酮表现出N*和T*带的红移，并且荧光强度比增加，而带有吸电子基团的色酮则表现出N*和T*带的蓝移。 T*带。因此，这些 3-HC 可能充当可能的荧光探针。

  DOI：

  10.1007/s10895-015-1623-0

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。
• Ruthenium(II)-Catalyzed Synthesis of Spirobenzofuranones by a Decarbonylative Annulation Reaction
  作者：Partha P. Kaishap、Gauri Duarah、Bipul Sarma、Dipak Chetia、Sanjib Gogoi

  DOI：10.1002/anie.201710049

  日期：2018.1.8

  activation of six‐membered compounds is reported. The Ru‐catalyzed reaction of 3‐hydroxy‐2‐phenyl‐chromones with alkynes works most efficiently in the presence of the ligand PPh3 to provide spiro‐indenebenzofuranones. Unlike previously reported metal‐catalyzed decarbonylative annulation reactions, in the present decarbonylative annulation reaction, the annulation occurs before extrusion of carbon monoxide

  据报道，炔烃通过六元化合物的C / H / C-C活化而首次脱羰基插入。在配体PPh 3存在下，Ru-催化的3-羟基-2-苯基色酮与炔烃的反应最有效，可提供螺茚二苯并呋喃酮。与以前报道的金属催化的脱羰环化反应不同，在本脱羰环化反应中，环化发生在一氧化碳挤出之前。
• METHODS OF DESIGNING, PREPARING, AND USING NOVEL PROTONOPHORES
  申请人：Martineau Louis C.

  公开号：US20140135359A1

  公开（公告）日：2014-05-15

  The present invention provides a computer-assisted method of generating a protonophore requiring the use of a computer including a processor. The method includes: designing the protonophore, calculating, using the processor, an estimated protonophoric activity; producing the protonophore if the estimated protonophoric activity corresponds to an U 50 of about 20 μM or less; and determining the uncoupling activity of the protonophore. The present invention also provides novel protonophores that meet the above requirement and their methods of use.

  本发明提供了一种利用计算机辅助的方法来生成需要使用处理器的质子载体。该方法包括：设计质子载体，使用处理器计算估计的质子载体活性；如果估计的质子载体活性对应于大约20微米或更少的U50，则生产质子载体；并确定质子载体的解耦活性。本发明还提供了符合上述要求的新型质子载体及其使用方法。
• Enantioselective Synthesis of 3,4-Chromanediones via Asymmetric Rearrangement of 3-Allyloxyflavones
  作者：Jean-Charles Marié、Yuan Xiong、Geanna K. Min、Adam R. Yeager、Tohru Taniguchi、Nina Berova、Scott E. Schaus、John A. Porco

  DOI：10.1021/jo100889c

  日期：2010.7.2

  Asymmetric scandium(III)-catalyzed rearrangement of 3-allyloxyflavones was utilized to prepare chiral, nonracemic 3,4-chromanediones in high yields and enantioselectivities. These synthetic intermediates have been further elaborated to novel heterocyclic frameworks including angular pyrazines and dihydropyrazines. The absolute configuration of rearrangement products was initially determined by a nonempirical

  利用不对称钪 (III) 催化的 3-烯丙氧基黄酮重排以高产率和对映选择性制备手性、非外消旋 3,4-色二酮。这些合成中间体已被进一步细化为新型杂环骨架，包括角吡嗪和二氢吡嗪。重排产物的绝对构型最初是通过圆二色性 (CD) 的非经验分析使用时间相关密度泛函理论 (TDDFT) 计算确定的，并通过腙衍生物的 X 射线晶体学验证。该机制的初步研究支持可能通过苯并吡喃中间体进行的分子内重排途径。