benzyl oleanolate 3β-O-[3-O-(2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl)-4,6-di-O-benzylidene-β-D-glucopyranoside] | 1352410-55-9

• 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: benzyl oleanolate 3β-O-[3-O-(2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl)-4,6-di-O-benzylidene-β-D-glucopyranoside]
• 英文别名: benzyl (4aS,6aR,6aS,6bR,8aR,10S,12aR,14bS)-10-[[(2R,4aR,6R,7R,8R,8aR)-7-hydroxy-2-phenyl-8-[(2S,3R,4R,5S,6S)-3,4,5-tribenzoyloxy-6-methyloxan-2-yl]oxy-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-2,2,6a,6b,9,9,12a-heptamethyl-1,3,4,5,6,6a,7,8,8a,10,11,12,13,14b-tetradecahydropicene-4a-carboxylate
• CAS: 1352410-55-9
• 化学式: C₇₇H₉₀O₁₅
• 分子量: 1255.55
• InChiKey: VKFJXDOQPXOPKA-BPAJQSJKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  15.2
• 重原子数：
  92
• 可旋转键数：
  18
• 环数：
  13.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  181
• 氢给体数：
  1
• 氢受体数：
  15

反应信息

• 作为反应物：
  描述：

  benzyl oleanolate 3β-O-[3-O-(2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl)-4,6-di-O-benzylidene-β-D-glucopyranoside] 在 palladium 10% on activated carbon 、 氢气 、 溶剂黄146 、 sodium methylate 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 20.0 ℃ 、101.33 kPa 条件下， 反应 12.0h， 以54%的产率得到oleanolic acid 3-O-α-L-rhamnopyranosyl-(1 → 3)-β-D-glucopyranoside
  参考文献：
  名称：

  Synthesis and antitumor activities of naturally occurring oleanolic acid triterpenoid saponins and their derivatives

  摘要：

  Twenty-six naturally occurring oleanolic acid saponins and their derivatives, 16 of which were synthesized in this study, were preliminarily evaluated against human cancer cells. From SAR studies, the presence of alpha-L-rhamnosyl residue at the terminal of both C-3 and C-28 position for oleanolic acid bidesmosides was important to enhance cytotoxicity, and introducing more sugar residues at C-3-OH of compound 12 with C-28 carboxylic acid is a favorable modification to ameliorate the anticancer activity. Furthermore, alpha-L-rhamnosyl moiety linked to C-2-OH of the first monosaccharide (alpha-L-alabinose, beta-D-xylose, beta-n-galactose or beta-D-glucose) in C-3-OH of oleanolic acid was helpful to improve the cytotoxicity. According to the predicted log P values, lipophilicity of the synthesized saponins was not an important factor for cytotoxicity. (C) 2013 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2013.04.016
• 作为产物：
  描述：

  、 2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyltrichloroacetimidate 在 三氟甲磺酸三甲基硅酯 作用下， 以 二氯甲烷 为溶剂， 反应 0.17h， 以45%的产率得到benzyl oleanolate 3β-O-[2-O-(2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl)-4,6-di-O-benzylidene-β-D-glucopyranoside]
  参考文献：
  名称：

  Synthesis and antitumor activities of naturally occurring oleanolic acid triterpenoid saponins and their derivatives

  摘要：

  Twenty-six naturally occurring oleanolic acid saponins and their derivatives, 16 of which were synthesized in this study, were preliminarily evaluated against human cancer cells. From SAR studies, the presence of alpha-L-rhamnosyl residue at the terminal of both C-3 and C-28 position for oleanolic acid bidesmosides was important to enhance cytotoxicity, and introducing more sugar residues at C-3-OH of compound 12 with C-28 carboxylic acid is a favorable modification to ameliorate the anticancer activity. Furthermore, alpha-L-rhamnosyl moiety linked to C-2-OH of the first monosaccharide (alpha-L-alabinose, beta-D-xylose, beta-n-galactose or beta-D-glucose) in C-3-OH of oleanolic acid was helpful to improve the cytotoxicity. According to the predicted log P values, lipophilicity of the synthesized saponins was not an important factor for cytotoxicity. (C) 2013 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2013.04.016