bretschnoside A

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: bretschnoside A
• 化学式: C₆₄H₁₀₄O₂₉
• 分子量: 1337.51
• InChiKey: HYOBKRSRGCZUIX-RAAGZNMLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -3.05
• 重原子数：
  93.0
• 可旋转键数：
  14.0
• 环数：
  11.0
• sp3杂化的碳原子比例：
  0.95
• 拓扑面积：
  451.51
• 氢给体数：
  16.0
• 氢受体数：
  29.0

反应信息

• 作为反应物：
  描述：

  bretschnoside A 在 盐酸 作用下， 以 甲醇 、 水 为溶剂， 反应 2.0h， 生成 齐墩果酸
  参考文献：
  名称：

  Two triterpenoid saponins from Pterocephalus bretschneidri

  摘要：

  Two new triterpenoid saponins, named bretschnosides A and B, were isolated from the roots of Pterocephalus bretschneidri. On the basis of chemical degradation and spectroscopic evidence, the structures of bretschnosides A and B were shown to be 3-O-alpha-L-rhamnopyranosyl(1-->3)- beta-D-xylopyranosyl(1-->3)-alpha-L-rhamnopyranosyl(1-->2)-beta-D- xylopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranoside 4 and 3-O-alpha-D-glucopyranosyl(1-->3)-beta-D-xylopyranosyl(1-->3)-alpha-L- rhamnopyranosyl(1-->2)-beta-D-xylopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranoside 6, respectively.

  DOI：

  10.1016/0031-9422(93)85175-q

文献信息

• Two triterpenoid saponins from Pterocephalus bretschneidri
  作者：Tian Jun、Wu Feng-E、Qiu Ming-Hua、Nie Rui-Lin

  DOI：10.1016/0031-9422(93)85175-q

  日期：1993.1

  Two new triterpenoid saponins, named bretschnosides A and B, were isolated from the roots of Pterocephalus bretschneidri. On the basis of chemical degradation and spectroscopic evidence, the structures of bretschnosides A and B were shown to be 3-O-alpha-L-rhamnopyranosyl(1-->3)- beta-D-xylopyranosyl(1-->3)-alpha-L-rhamnopyranosyl(1-->2)-beta-D- xylopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranoside 4 and 3-O-alpha-D-glucopyranosyl(1-->3)-beta-D-xylopyranosyl(1-->3)-alpha-L- rhamnopyranosyl(1-->2)-beta-D-xylopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranoside 6, respectively.