oleanate 28-O-6-phthalimido-6-deoxy-α-D-mannopyranoside | 1609984-12-4

• 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: oleanate 28-O-6-phthalimido-6-deoxy-α-D-mannopyranoside
• CAS: 1609984-12-4
• 化学式: C₄₄H₆₃NO₁₀
• 分子量: 765.985
• InChiKey: WJOXXHVZJHPEBM-CMQNASGTSA-N

物化性质

• 沸点：
  854.8±65.0 °C(predicted)
• 密度：
  1.29±0.1 g/cm3(Temp: 20 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.63
• 重原子数：
  55.0
• 可旋转键数：
  6.0
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  182.85
• 氢给体数：
  6.0
• 氢受体数：
  9.0

反应信息

• 作为产物：
  描述：

  1,2,3,4-Tetra-O-benzoyl-alpha-D-mannopyranose 在 吡啶 、 4-二甲氨基吡啶 、 palladium 10% on activated carbon 、 四丁基溴化铵 、 氢溴酸 、 氢气 、 sodium methylate 、 potassium carbonate 、 溶剂黄146 、 对甲苯磺酰氯 、 三甲基膦 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 水 为溶剂， 20.0~60.0 ℃ 、101.33 kPa 条件下， 反应 195.0h， 生成 oleanate 28-O-6-phthalimido-6-deoxy-α-D-mannopyranoside
  参考文献：
  名称：

  Synthesis and evaluation of several oleanolic acid glycoconjugates as protein tyrosine phosphatase 1B inhibitors

  摘要：

  Sixteen novel oleanolic acid triterpenoid saponins were synthesized in an efficient and practical strategy, and their inhibitory activities against protein tyrosine phosphatase 1B (PTP1B) and selectivity over T-cell protein tyrosine phosphatase (TCPTP) were evaluated in vitro. The preliminary structure activity relationship studies demonstrated that sugar-substituted moiety attached to the C-3 and C-28 positions of OA scaffold greatly affected the inhibitory activity against PTP1B and the selectivity over TCPTP. All the compounds showed inhibitory potencies, and compounds 1h, 1i and 1j exhibited remarkably potent inhibitory activities against PTP1B with IC50 values of 1.03, 0.78 and 3.12 mu M, respectively. More significantly, compound 1h showed greater than 4 folds selectivity over highly homologous TCPTP. In parallel, the lipophilicity evaluation of all synthesized compounds was tested as a prediction for pharmacological potency. According to the predicted log P values, the predicted Log P results showed that lipophilicity may correlate with the evaluated biological potency. (C) 2014 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2014.03.080