syringetin 3-O-glucoside | 40039-49-4

• 物质功能分类: 生物化工 - 提取物 - 植物提取物
• 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: syringetin 3-O-glucoside
• 英文别名: syringetin 3-O-β-D-glucoside；syringetin 3-O-β-D-glucopyranoside；syringetin-3-glucoside；Syringetin-3-o-glucoside；5,7-dihydroxy-2-(4-hydroxy-3,5-dimethoxyphenyl)-3-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxychromen-4-one
• CAS: 40039-49-4
• 化学式: C₂₃H₂₄O₁₃
• 分子量: 508.436
• InChiKey: JMFWYRWPJVEZPV-AVGVHVDKSA-N

物化性质

• 熔点：
  250°C (dec.)
• 沸点：
  850.6±65.0 °C(Predicted)
• 密度：
  1.73±0.1 g/cm3(Predicted)
• LogP：
  1.360 (est)

计算性质

• 辛醇/水分配系数(LogP)：
  0.7
• 重原子数：
  36
• 可旋转键数：
  6
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.35
• 拓扑面积：
  205
• 氢给体数：
  7
• 氢受体数：
  13

反应信息

• 作为产物：
  描述：

  2-(3,5-dimethoxy-4-hydroxyphenyl)-8-hydroxy-5-methyl-3-O-β-D-glucopyranosyloxypyrano[4,3,2-de]-1-benzopyrilium 生成 syringetin 3-O-glucoside
  参考文献：
  名称：

  Chemical Behavior of Methylpyranomalvidin-3-O-glucoside in Aqueous Solution Studied by NMR and UV−Visible Spectroscopy

  摘要：

  In the present work, the proton-transfer reactions of the methylpyranomalvidin-3-O-glucoside pigment in water with different pH values was studied by NMR and UV-visible spectroscopies. The results showed four equilibrium forms: the methylpyranomalvidin-3-O-glucoside cation, the neutral quinoidal base, the respective anionic quinoidal base, and a dianionic base unprotonated at the methyl group. According to the NMR data, it seems that for methylpyranomalvidin-3-O-glucoside besides the acid base equilibrium between the pyranoflavylium cation and the neutral quinoidal base, a new species is formed at pD 4.88-6.10. This is corroborated by the appearance of a new set of signals in the NMR spectrum that may be assigned to the formation of hemiketal/cis-chalcone species to a small extent. The two ionization constants (pK(a1) and pK(a2)) obtained by both methods (NMR and UV-visible) for methylpyranomalvidin-3-O-glucoside are in agreement (pK(a1) = 5.17 +/- 0.03; pK(a2) = 8.85 +/- 0.08; and pK(a1) = 4.57 +/- 0.07; pK(a2) = 8.23 +/- 0.04 obtained by NMR and UV-visible spectroscopies, respectively). Moreover, the fully dianionic unprotonated form (at the methyl group) of the methylpyranomalvidin-3-O-glucoside is converted slowly into a new structure that displays a yellow color at basic pH. On the basis of the results obtained through LC-MS and NMR, the proposed structure was found to correspond to the flavonol syringetin-3-glucoside.

  DOI：

  10.1021/jp110593c

文献信息

• Tire with rubber containing flavone
  申请人：THE GOODYEAR TIRE & RUBBER COMPANY

  公开号：EP1391327A1

  公开（公告）日：2004-02-25

  The invention relates to a rubber composition and a pneumatic tire having a component comprising a rubber containing the reaction product of a flavone and a methylene donor.

  本发明涉及一种橡胶组合物和充气轮胎，其成分包括含有黄酮和亚甲基供体反应产物的橡胶。
• Rubber composition and tire with rubber containing flavone
  申请人：The Goodyear Tire & Rubber Company

  公开号：EP2730431A1

  公开（公告）日：2014-05-14

  A rubber composition comprising a diene based elastomer and an adhesion promoter derived from a flavone, a methylene donor and a methylene acceptor is disclosed. The rubber composition is essentially free of cobalt. Also, a pneumatic tire comprising such a rubber composition is disclosed.

  本发明公开了一种橡胶组合物，该组合物包含一种二烯基弹性体和一种由黄酮、亚甲基供体和亚甲基受体衍生的附着力促进剂。该橡胶组合物基本上不含钴。此外，还公开了一种包含这种橡胶组合物的充气轮胎。
• Methods For Treating Wounds
  申请人：Kimberly-Clark Worldwide, Inc.

  公开号：US20030125264A1

  公开（公告）日：2003-07-03

  Pharmaceutical compositions, and methods of using the same, are provided utilizing effective amounts of one or more flavones, flavonols, flavanones, isoflavanones and isoflavones to increase cell proliferation in various tissues and cell lines. As examples, the composition and methods of the present invention can be used to increase proliferation of fibroblast cells and, more particularly, in the treatment of wounds as well as strengthening of the skin.

  本发明提供了利用有效量的一种或多种黄酮、黄酮醇、黄烷酮、异黄烷酮和异黄酮来增加各种组织和细胞系的细胞增殖的药物组合物及其使用方法。举例来说，本发明的组合物和方法可用于增加成纤维细胞的增殖，特别是用于治疗伤口和强化皮肤。
• TIRE WITH RUBBER CONTAINING FLAVONE
  申请人：The Goodyear Tire & Rubber Company

  公开号：US20140135433A1

  公开（公告）日：2014-05-15

  The invention relates to a pneumatic tire having a component containing a rubber composition comprising (A) a diene based elastomer; and (B) an adhesion promoter derived from (1) a flavone; (2) a methylene donor; and (3) a methylene acceptor; wherein the rubber composition is essentially free of cobalt.
• US6872771B1
  申请人：——

  公开号：US6872771B1

  公开（公告）日：2005-03-29