euphorbin E | 129497-86-5

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 单宁
• 英文名称: euphorbin E
• CAS: 129497-86-5
• 化学式: C₈₂H₅₂O₅₄
• 分子量: 1901.28
• InChiKey: DUXUTTJCEMBWCS-VIQOEWQTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -3
• 重原子数：
  136
• 可旋转键数：
  6
• 环数：
  20.0
• sp3杂化的碳原子比例：
  0.26
• 拓扑面积：
  853
• 氢给体数：
  23
• 氢受体数：
  54

反应信息

• 作为反应物：
  描述：

  euphorbin E 在 palladium on activated charcoal 氢气 作用下， 以 乙酸乙酯 为溶剂， 反应 26.0h， 以2.6 mg的产率得到
  参考文献：
  名称：

  Tannins and Related Polyphenols of Euphorbiaceous Plants. VII. Tirucallins A, B and Euphorbin F, Monomeric and Dimeric ellagitannins from Euphorbia tirucalli L.

  摘要：

  A new monomeric hydrolyzable tannin, tirucallin A (7), and two new dimers, tirucallin B (11) and euphorbin F (14), have been isolated, together with six known polyphenols including euphorbin A, from the stems of Euphorbia tirucalli L., and their structures were elucidated by spectral and chemical methods. Euphorbin F (14) possesses dehydrohexahydroxydiphenoyl and valoneoyl groups, and tirucallin A (7) has a dilactonized veloneoyl group. The orientation of the valoneoyl group of euphorbins A and B was revised.

  DOI：

  10.1248/cpb.39.1137

文献信息

• Tannins and Related Polyphenols of Euphorbiaceous Plants. VII. Tirucallins A, B and Euphorbin F, Monomeric and Dimeric ellagitannins from Euphorbia tirucalli L.
  作者：Takashi YOSHIDA、Koh-ichi YOKOYAMA、Osamu NAMBA、Takuo OKUDA

  DOI：10.1248/cpb.39.1137

  日期：——

  A new monomeric hydrolyzable tannin, tirucallin A (7), and two new dimers, tirucallin B (11) and euphorbin F (14), have been isolated, together with six known polyphenols including euphorbin A, from the stems of Euphorbia tirucalli L., and their structures were elucidated by spectral and chemical methods. Euphorbin F (14) possesses dehydrohexahydroxydiphenoyl and valoneoyl groups, and tirucallin A (7) has a dilactonized veloneoyl group. The orientation of the valoneoyl group of euphorbins A and B was revised.