epicatechin-7-O-β-D-glucuronide | 389136-63-4

• 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: epicatechin-7-O-β-D-glucuronide
• 英文别名: Epicatechin-7-glucuronide；(2S,3S,4S,5R,6S)-6-[[(2R,3R)-2-(3,4-dihydroxyphenyl)-3,5-dihydroxy-3,4-dihydro-2H-chromen-7-yl]oxy]-3,4,5-trihydroxyoxane-2-carboxylic acid
• CAS: 389136-63-4
• 化学式: C₂₁H₂₂O₁₂
• 分子量: 466.398
• InChiKey: FDWDKTKDGDLDTP-BBGDWMAASA-N

物化性质

• 沸点：
  871.3±65.0 °C(Predicted)
• 密度：
  1.763±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -1.2
• 重原子数：
  33
• 可旋转键数：
  4
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  207
• 氢给体数：
  8
• 氢受体数：
  12

反应信息

• 作为产物：
  描述：

  (2R,3R)-3,5-bis(benzyloxy)-2-(3,4-bis(benzyloxy)phenyl)-7-(methoxymethoxy)chromane 在 盐酸 、 20% palladium hydroxide-activated charcoal 、 氢气 、 sodium hydroxide 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 甲醇 、 二氯甲烷 为溶剂， 反应 7.25h， 生成 epicatechin-7-O-β-D-glucuronide
  参考文献：
  名称：

  Chemical Synthesis and Characterization of Epicatechin Glucuronides and Sulfates: Bioanalytical Standards for Epicatechin Metabolite Identification

  摘要：

  The monoglucuronides and sulfates of epicatechin, 3'-O-methylepicatechin, and 4'-O-methylepicatechin, respectively, were synthesized as authentic bioanalytical standards. Reversed-phase HPLC methods capable of baseline separation of the glucuronides and sulfates have been developed. Both the epicatechin glucuronides and sulfates were stable in the solid state when stored under ambient conditions and in aqueous solution when stored refrigerated. These results should prove invaluable to the research community as analytical standards as well as in future studies of the biological and pharmacological effects of epicatechin in humans.

  DOI：

  10.1021/np300568m

文献信息

• Enzymatic Synthesis of Bioactive <i>O</i>-Glucuronides Using Plant Glucuronosyltransferases
  作者：Tian Yue、Ridao Chen、Dawei Chen、Jimei Liu、Kebo Xie、Jungui Dai

  DOI：10.1021/acs.jafc.9b01769

  日期：2019.6.5

  glucuronidation of bioactive natural products or drugs to generate glucuronides with better activity and druggability is important in drug discovery and research. In this study, by using two uridine diphosphate (UDP)-dependent glucuronosyltransferases (GATs, UGT88D4 and UGT88D7) from plants, we developed two glucuronidation approaches, pure enzyme catalysis in vitro and recombinant whole-cell catalysis in

  在自然界和药物代谢中已发现许多表现出多种药理活性的O-葡萄糖醛酸。生物活性天然产物或药物的葡糖醛酸苷化以产生具有更好活性和可药用性的葡糖醛酸苷在药物发现和研究中很重要。在这项研究中，通过使用来自植物的两种尿苷二磷酸（UDP）依赖性葡萄糖醛酸糖基转移酶（GAT，UGT88D4和UGT88D7），我们开发了两种葡萄糖醛酸化方法，即体外纯酶催化和体内重组全细胞催化，以有效合成生物活性O。 -glucuronides通过天然产物的葡萄糖醛酸化作用。总共14 O获得了具有不同结构的β-葡糖醛酸，包括类黄酮，蒽醌，香豆素和木脂素，其中7种是新化合物。此外，生物合成的O-葡萄糖醛酸中的一种，kaempferol-7- O - β - d-葡萄糖醛酸（3a）可以有效抑制蛋白酪氨酸磷酸酶（PTP）1B，IC 50值为8.02×10 –6M。生物合成的O-葡萄糖醛酸苷也表现出显着的抗氧化活性。
• A versatile approach to the regioselective synthesis of diverse (−)-epicatechin-β-d-glucuronides
  作者：Eric S. Mull、Michael Van Zandt、Adam Golebiowski、R. Paul Beckett、Pradeep K. Sharma、Hagen Schroeter

  DOI：10.1016/j.tetlet.2012.01.054

  日期：2012.3

  A versatile new approach is reported for the total synthesis of five glucuronide metabolites of epicatechin, using selective protection/deprotection techniques. (C) 2012 Elsevier Ltd. All rights reserved.
• Chemical Synthesis and Characterization of Epicatechin Glucuronides and Sulfates: Bioanalytical Standards for Epicatechin Metabolite Identification
  作者：Mingbao Zhang、G. Erik Jagdmann、Michael Van Zandt、Ryan Sheeler、Paul Beckett、Hagen Schroeter

  DOI：10.1021/np300568m

  日期：2013.2.22

  The monoglucuronides and sulfates of epicatechin, 3'-O-methylepicatechin, and 4'-O-methylepicatechin, respectively, were synthesized as authentic bioanalytical standards. Reversed-phase HPLC methods capable of baseline separation of the glucuronides and sulfates have been developed. Both the epicatechin glucuronides and sulfates were stable in the solid state when stored under ambient conditions and in aqueous solution when stored refrigerated. These results should prove invaluable to the research community as analytical standards as well as in future studies of the biological and pharmacological effects of epicatechin in humans.