4'-benzyloxy-3'-methoxyflavonol | 112818-98-1

• 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: 4'-benzyloxy-3'-methoxyflavonol
• 英文别名: 2-(4-benzyloxy-3-methoxy-phenyl)-3-hydroxy-chromen-4-one；2-(4-Benzyloxy-3-methoxy-phenyl)-3-hydroxy-chromen-4-on；3-Hydroxy-2-(3-methoxy-4-phenylmethoxyphenyl)chromen-4-one
• CAS: 112818-98-1
• 化学式: C₂₃H₁₈O₅
• 分子量: 374.393
• InChiKey: GMPPNKVCZCPJPT-UHFFFAOYSA-N

物化性质

• 熔点：
  187-190 °C(Solvent: Ethanol)
• 沸点：
  543.9±50.0 °C(predicted)
• 密度：
  1.323±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  28
• 可旋转键数：
  5
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.09
• 拓扑面积：
  65
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  4'-benzyloxy-3'-methoxyflavonol 在 茴香硫醚 、 三氟乙酸 作用下， 反应 8.0h， 以58%的产率得到3-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-4H-chromen-4-one
  参考文献：
  名称：

  Exploration of Pharmacophore in Chrysosplenol C as Activator in Ventricular Myocyte Contraction

  摘要：

  Chrysosplenol C (4',5,6-trihydroxy-3,3',7-tri-methoxyflavone) isolated from Miliusa balansae has unique structural features as a reversible inotropic agent independent of beta-adrenergic signaling and with selective activation of cardiac myosin ATPase. Hence, a series of chrysosplenol analogues were synthesized and explored for identification of pharmacophore that is essential for the increasing contractility in rat ventricular myocytes. Analogue 7-chloro-2-(3-hydroxypheny1)-3-methoxy-4H-chromen-4-one showed highly potent contractility (54.8% at 10 mu M) through activating cardiac myosin ATPase (38.7% at 10 mu M). Our systematic structure activity relationship study revealed that flavonoid nucleus of chrososplenol C appears to be an essential basic skeleton and hydrophobic substituent at position 7 of chromenone such as methoxy or chloro enhances the activity. Additionally, our ATPase study suggested that these chrysosplenol analogues have selectivity toward cardiac myosin activation. Thus, the novel flavonone with 3-/7-hydrophobic substituent and 3'-hydrogen bonding donor function is a novel scaffold for discovery of a new positive inotropic agent.

  DOI：

  10.1021/acsmedchemlett.5b00043
• 作为产物：
  描述：

  4-苄氧基-3-甲氧基苯甲醛 在 双氧水 、 potassium hydroxide 、 sodium hydroxide 作用下， 以 甲醇 、 乙醇 、 水 为溶剂， 生成 4'-benzyloxy-3'-methoxyflavonol
  参考文献：
  名称：

  3′-Hydroxy-3,4′-dimethoxyflavone blocks tubulin polymerization and is a potent apoptotic inducer in human SK-MEL-1 melanoma cells

  摘要：

  Flavonoids are naturally occurring polyphenolic compounds and are among the most promising anticancer agents. A series of flavonols and their 3-methyl ether derivatives were synthesized and assessed for cytotoxicity. It was found that 3'-hydroxy-3,4'-dimethoxyflavone (flavonoid 7a) displayed strong cytotoxicity against human SK-MEL-1 melanoma cells and blocked tubulin polymerization, but had no significant cytotoxic effects against quiescent or proliferating human peripheral blood mononuclear cells. Our analyses showed that flavonoid 7a induces G2-M cell cycle arrest and apoptosis in melanoma cells which is associated with cytochrome c release and activation of both extrinsic and intrinsic apoptotic pathways of cell death. (C) 2017 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2017.09.043

文献信息

• 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。
• Understanding the Cardioprotective Effects of Flavonols: Discovery of Relaxant Flavonols without Antioxidant Activity
  作者：Cheng Xue Qin、Xingqiang Chen、Richard A. Hughes、Spencer J. Williams、Owen L. Woodman

  DOI：10.1021/jm070352h

  日期：2008.3.1

  3 ',4 '-Dihydroxyflavonol (DiOHF) is a cardioprotective flavonol that can reduce injury after myocardial ischemia and reperfusion and thus is a promising small molecule for the treatment of cardiovascular disease. Like all vasoactive flavonols reported to date, DiOHF is both relaxant and antioxidant, hindering investigation of the relative contribution of each activity for the prevention of reperfusion injury. This study investigates structure-activity relationships of variations at the 3 ' and 4 ' positions of the B ring of DiOHF and vasorelaxant and antioxidant activities. Relaxation of rat isolated aortic rings precontracted with KCl revealed that the most active flavonols were those with a 4 '-hydroxyl group, with the opening of potassium channels as a possible contributing mechanism. For the antioxidant activity, with the exception of DiOHF, none of the flavonols investigated were able to significantly scavenge superoxide radical, and none of the three most potent vasorelaxant flavonols could prevent oxidant-induced endothelial dysfunction. The discovery of single-acting vasorelaxant flavonols without antioxidant activity, in particular 4 '-hydroxy-3 '-methoxyflavonol, will assist in investigating the mechanism of flavonol-induced cardioprotection.
• Yamaguchi, Nippon Kagaku Zasshi, 1959, vol. 80, p. 204
  作者：Yamaguchi

  DOI：——

  日期：——
• Exploration of Pharmacophore in Chrysosplenol C as Activator in Ventricular Myocyte Contraction
  作者：Eeda Venkateswararao、Min-Jeong Son、Niti Sharma、Manoj Manickam、PullaReddy Boggu、Young Ho Kim、Sun-Hee Woo、Sang-Hun Jung

  DOI：10.1021/acsmedchemlett.5b00043

  日期：2015.7.9

  Chrysosplenol C (4',5,6-trihydroxy-3,3',7-tri-methoxyflavone) isolated from Miliusa balansae has unique structural features as a reversible inotropic agent independent of beta-adrenergic signaling and with selective activation of cardiac myosin ATPase. Hence, a series of chrysosplenol analogues were synthesized and explored for identification of pharmacophore that is essential for the increasing contractility in rat ventricular myocytes. Analogue 7-chloro-2-(3-hydroxypheny1)-3-methoxy-4H-chromen-4-one showed highly potent contractility (54.8% at 10 mu M) through activating cardiac myosin ATPase (38.7% at 10 mu M). Our systematic structure activity relationship study revealed that flavonoid nucleus of chrososplenol C appears to be an essential basic skeleton and hydrophobic substituent at position 7 of chromenone such as methoxy or chloro enhances the activity. Additionally, our ATPase study suggested that these chrysosplenol analogues have selectivity toward cardiac myosin activation. Thus, the novel flavonone with 3-/7-hydrophobic substituent and 3'-hydrogen bonding donor function is a novel scaffold for discovery of a new positive inotropic agent.
• 3′-Hydroxy-3,4′-dimethoxyflavone blocks tubulin polymerization and is a potent apoptotic inducer in human SK-MEL-1 melanoma cells
  作者：Francisco Estévez-Sarmiento、Mercedes Said、Ignacio Brouard、Francisco León、Celina García、José Quintana、Francisco Estévez

  DOI：10.1016/j.bmc.2017.09.043

  日期：2017.11

  Flavonoids are naturally occurring polyphenolic compounds and are among the most promising anticancer agents. A series of flavonols and their 3-methyl ether derivatives were synthesized and assessed for cytotoxicity. It was found that 3'-hydroxy-3,4'-dimethoxyflavone (flavonoid 7a) displayed strong cytotoxicity against human SK-MEL-1 melanoma cells and blocked tubulin polymerization, but had no significant cytotoxic effects against quiescent or proliferating human peripheral blood mononuclear cells. Our analyses showed that flavonoid 7a induces G2-M cell cycle arrest and apoptosis in melanoma cells which is associated with cytochrome c release and activation of both extrinsic and intrinsic apoptotic pathways of cell death. (C) 2017 Elsevier Ltd. All rights reserved.