flavan-3-ol | 1481-83-0

• 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: flavan-3-ol
• 英文别名: 2-phenyl-chroman-3-ol；3-flavanol；2-phenyl-3,4-dihydro-2H-chromen-3-ol
• CAS: 1481-83-0
• 化学式: C₁₅H₁₄O₂
• 分子量: 226.275
• InChiKey: OEIJRRGCTVHYTH-UHFFFAOYSA-N

物化性质

• 熔点：
  72 °C
• 沸点：
  394.7±42.0 °C(Predicted)
• 密度：
  1.200±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  17
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  29.5
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  flavan-3-ol 、 苯甲酸 在 N-甲基吗啉 、 4-二甲氨基吡啶 、 O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 生成 (+/-)-trans-flavanol 3-O-benzoate
  参考文献：
  名称：

  A structure-activity study for the inhibition of metalloproteinase-9 activity and gene expression by analogues of gallocatechin-3-gallate

  摘要：

  Catechins are able to modulate the gelatinolytic activity of matrix metalloproteinase-9 (MMP-9) by reducing its release from macrophages. Gallocatechins decrease MMP-9 secretion by lowering MMP-9 promoter activity and mRNA levels. The effect appears to be dependent on some structural and stereochemical requirements. In this study, the relationship between chemical structure and activity was studied by testing the effect of analogues of (+/-)-gallocatechin-3-gallate (+/-)-GCG, selectively deprived of hydroxyl groups, on MMP-9 activity, transcription, and secretion. Our results indicate that (+/-)-GCG and (+/-)-catechin-3-gallate are characterized by a substitution pattern compatible with direct inhibition of MMP-9 activity. Conversely, when transcription was the target, (+/-)-trans-3-flavanol-3-benzoate, lacking all the hydroxyl groups, was the most effective both in lowering MMP-9 promoter activity and consequently protein secretion, and in inhibiting nuclear-factor-kappa B-driven transcription. Our results suggest that the structural requirements for enzyme inhibition are different from those necessary for targeting gene expression.

  DOI：

  10.1007/s00018-005-5422-7
• 作为产物：
  描述：

  (2E)-1-(2-羟基苯基)-3-苯基-2-丙烯-1-酮 在 sodium tetrahydroborate 、 硼烷四氢呋喃络合物 作用下， 以 四氢呋喃 、 乙醇 为溶剂， 生成 flavan-3-ol
  参考文献：
  名称：

  A structure-activity study for the inhibition of metalloproteinase-9 activity and gene expression by analogues of gallocatechin-3-gallate

  摘要：

  Catechins are able to modulate the gelatinolytic activity of matrix metalloproteinase-9 (MMP-9) by reducing its release from macrophages. Gallocatechins decrease MMP-9 secretion by lowering MMP-9 promoter activity and mRNA levels. The effect appears to be dependent on some structural and stereochemical requirements. In this study, the relationship between chemical structure and activity was studied by testing the effect of analogues of (+/-)-gallocatechin-3-gallate (+/-)-GCG, selectively deprived of hydroxyl groups, on MMP-9 activity, transcription, and secretion. Our results indicate that (+/-)-GCG and (+/-)-catechin-3-gallate are characterized by a substitution pattern compatible with direct inhibition of MMP-9 activity. Conversely, when transcription was the target, (+/-)-trans-3-flavanol-3-benzoate, lacking all the hydroxyl groups, was the most effective both in lowering MMP-9 promoter activity and consequently protein secretion, and in inhibiting nuclear-factor-kappa B-driven transcription. Our results suggest that the structural requirements for enzyme inhibition are different from those necessary for targeting gene expression.

  DOI：

  10.1007/s00018-005-5422-7

文献信息

• [EN] METHOD FOR THE PREPARATION OF C-4 COUPLED FLAVONOIDS, PROANTHOCYANIDINS AND ANALOGUES THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION DE FLAVONOÏDES COUPLÉS EN C-4, DE PROANTHOCYANIDINES ET D'ANALOGUES CORRESPONDANTS
  申请人：UNIV FREE STATE ZA

  公开号：WO2009147645A1

  公开（公告）日：2009-12-10

  The invention relates to a novel process for the preparation of C-4 coupled flavonoids, proanthocyanidins and analogues thereof. According to a specific application of the invention, there is provided a method for the preparation of proanthocyanidins and proanthocyanidin analogues.

  这项发明涉及一种新型的制备C-4偶联类黄酮、原花青素及其类似物的方法。根据该发明的一个具体应用，提供了一种制备原花青素和原花青素类似物的方法。
• Hydroxylated nebivolol metabolites
  申请人：O'Donnell P. John

  公开号：US20070014733A1

  公开（公告）日：2007-01-18

  Hydroxylated nebivolol metabolites increase NO release from human endothelial cell preparations in a concentration dependent fashion following acute administration. In addition, hydroxylated nebivolol metabolites, including but not limited to 4-hydroxy-6,6′difluoro-, 4-hydroxy-5-phenol-6,6′difluoro-, and 4-hydroxy-8-pheno-6,6′difluoro-, have the ability to increase the capacity for NO release in human endothelial cells following chronic administration. This invention provides hydroxylated nebivolol metabolites and compositions comprising nebivolol and/or at least one hydroxylated metabolite of nebivolol and/or at least one additional compound used to treat cardiovascular diseases or a pharmaceutically acceptable salt thereof. In addition, this invention provides methods of treating and/or preventing vascular diseases by administering at least one hydroxylated metabolite of nebivolol that is capable of releasing a therapeutically effective amount of nitric oxide to a targeted site affected by the vascular disease. Also, this invention is directed to the treatment and/or prevention of migraine headaches administering at least one hydroxylated metabolite of nebivolol. This invention may also be used in conjunction with or as a single treatment of metabolic syndrome disorders.

  羟基化奈必洛尔代谢物在急性给药后以浓度依赖性方式增加人内皮细胞制剂的一氧化氮释放。此外，羟基化奈必洛尔代谢物，包括但不限于4-羟基-6,6'-二氟代-、4-羟基-5-苯酚-6,6'-二氟代-和4-羟基-8-苯并-6,6'-二氟代-，在慢性给药后能够增加人内皮细胞的一氧化氮释放能力。本发明提供了羟基化奈必洛尔代谢物和包含奈必洛尔和/或至少一种羟基化奈必洛尔代谢物和/或至少一种用于治疗心血管疾病的附加化合物的组合物，以及可药用的盐。此外，本发明还提供了通过给药至少一种能够释放治疗有效量的一氧化氮到受血管疾病影响的靶向部位的羟基化奈必洛尔代谢物来治疗和/或预防血管疾病的方法。本发明还涉及通过给药至少一种羟基化奈必洛尔代谢物来治疗和/或预防偏头痛。本发明还可以与治疗代谢综合征障碍的其他治疗联合使用，或作为单一治疗。
• [EN] AMINOCYCLOHEXENE QUINOLINES AND THEIR AZAISOSTERIC ANALOGUES WITH ANTIBACTERIAL ACTIVITY<br/>[FR] MEDICAMENTS
  申请人：GLAXO GROUP LTD

  公开号：WO2004014361A1

  公开（公告）日：2004-02-19

  Cyclohexene derivatives and pharmaceutically acceptable derivatives thereof useful in methods of treatment of bacterial infections in mammals, particularly man.

  环己烯衍生物及其在哺乳动物，特别是人类细菌感染治疗方法中有用的药用可接受衍生物。
• NOVEL ANALOGUES OF EPICATECHIN AND RELATED POLYPHENOLS
  申请人：SPHAERA PHARMA PVT. LTD.

  公开号：US20160039781A1

  公开（公告）日：2016-02-11

  The present invention provides novel analogues of epicatechin and related polyphenols, their variously functionalized derivatives, process for preparation of the same, composition comprising these compounds and their method of use.

  本发明提供了表儿茶素及相关多酚的新颖类似物，它们的各种官能化衍生物，以及它们的制备方法、包含这些化合物的组合物和它们的使用方法。
• Flavonoids as Synergists for Enhancing the Action of Self-Tanning Substances
  申请人：Rudolph Thomas

  公开号：US20080279793A1

  公开（公告）日：2008-11-13

  The invention relates to the use of at least one flavonoid having an uncharged flavan skeleton as synergist for enhancing the action of self-tanning substances, such as trioses and tetroses, in cosmetic and dermatological formulations and to corresponding novel compositions and to the preparation thereof.

  这项发明涉及在化妆品和皮肤科制剂中使用至少一种具有未带电的黄酮骨架的黄酮类物质作为协同剂，以增强自日晒剂（如三糖和四糖）的作用，并涉及相应的新型组合物及其制备方法。