echioidin | 6736-71-6

• 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: echioidin
• 英文别名: 5,2'-dihydroxy-7-methoxyflavone 2'-O-β-D-glucopyranoside；5-hydroxy-7-methoxy-2-[2-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyphenyl]chromen-4-one
• CAS: 6736-71-6
• 化学式: C₂₂H₂₂O₁₀
• 分子量: 446.411
• InChiKey: NCWUWWMZUSHZKJ-MIUGBVLSSA-N

物化性质

• 熔点：
  276-278 °C
• 沸点：
  763.7±60.0 °C(Predicted)
• 密度：
  1.545±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  32
• 可旋转键数：
  5
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  155
• 氢给体数：
  5
• 氢受体数：
  10

反应信息

• 作为产物：
  描述：

  echioidinin 2'-O-β-D-(6''-O-acetyl)glucopyranoside 在 氢氧化钾 作用下， 反应 2.0h， 以4 mg的产率得到echioidin
  参考文献：
  名称：

  New 2‘-Oxygenated Flavonoids from Andrographis affinis

  摘要：

  Three new T-oxygenated flavonoids, (2S)-5,7,2',3',4'-pentamethoxyflavanone (1), 5-hydroxy-7,8,2',5'-tetramethoxyflavone (2), and echioidinin 2'-O-beta-D-(6"-O-acetyl) glucopyranoside (3), together with four known flavonoids, 7-O-methyldihydrowogonin, 7-0-methylwogonin, skullcapflavone I 2'-methyl ether, and skullcapflavone I, and two diterpenoids, andrograpanin and 14-deoxy-11,12-didehydroandrographolide, were isolated from the whole plant of Andrographis affinis. The structures were elucidated by spectral and chemical studies.

  DOI：

  10.1021/np020331k

文献信息

• New 2‘-Oxygenated Flavonoids from <i>Andrographis affinis</i>
  作者：M. Vijaya Bhaskar Reddy、P. Hari Kishore、C. Venkata Rao、D. Gunasekar、Cristelle Caux、Bernard Bodo

  DOI：10.1021/np020331k

  日期：2003.2.1

  Three new T-oxygenated flavonoids, (2S)-5,7,2',3',4'-pentamethoxyflavanone (1), 5-hydroxy-7,8,2',5'-tetramethoxyflavone (2), and echioidinin 2'-O-beta-D-(6"-O-acetyl) glucopyranoside (3), together with four known flavonoids, 7-O-methyldihydrowogonin, 7-0-methylwogonin, skullcapflavone I 2'-methyl ether, and skullcapflavone I, and two diterpenoids, andrograpanin and 14-deoxy-11,12-didehydroandrographolide, were isolated from the whole plant of Andrographis affinis. The structures were elucidated by spectral and chemical studies.