oleanolic acid 3-O-2,3-di-O-(α-L-rhamnopyranosyl)-β-D-glucopyranoside | 1352410-40-2

• 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: oleanolic acid 3-O-2,3-di-O-(α-L-rhamnopyranosyl)-β-D-glucopyranoside
• 英文别名: (4aS,6aR,6aS,6bR,8aR,10S,12aR,14bS)-10-[(2R,3R,4S,5R,6R)-5-hydroxy-6-(hydroxymethyl)-3,4-bis[[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy]oxan-2-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-carboxylic acid
• CAS: 1352410-40-2
• 化学式: C₄₈H₇₈O₁₆
• 分子量: 911.138
• InChiKey: JCDQOWFXQLBVBH-RHSWJICKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  64
• 可旋转键数：
  8
• 环数：
  8.0
• sp3杂化的碳原子比例：
  0.94
• 拓扑面积：
  255
• 氢给体数：
  9
• 氢受体数：
  16

反应信息

• 作为反应物：
  描述：

  oleanolic acid 3-O-2,3-di-O-(α-L-rhamnopyranosyl)-β-D-glucopyranoside 、 碘甲烷 在 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 12.5h， 以92%的产率得到3β-O-[2,3-di-O-(α-L-rhamnopyranosyl)-β-D-glucopyranosyl]olean-12-en-28-oic acid methyl ester
  参考文献：
  名称：

  Structure-activity relationships of 3-O-β-chacotriosyl oleanic acid derivatives as entry inhibitors for highly pathogenic H5N1 influenza virus

  摘要：

  Highly pathogenic H5N1 virus (H5N1) entry is a key target for the development of novel anti-influenza agents with new mechanisms of action. In our continuing efforts to identify novel potential anti-H5N1 entry inhibitors, a series of 3-O-beta-chacotriosyl oleanolic acid analogs have been designed, synthesized and evaluated as H5N1 entry inhibitors based on two small molecule inhibitors 1 and 2 previously discovered by us. The anti-H5N1 entry activities were determined based on HA/HIV and VSVG/HIV entry assays. Compound 15 displayed the most promising anti-H5N1 entry activities with average IC50 values of 4.05 mu M and good selective index (22.9). Detailed structure-activity relationships (SARs) studies suggested that either the introduction of an additional oxo group to position 11 at OA or alteration of the C-3 configuration of OA from 3 beta- to 3 alpha-forms can significantly enhance the selective index while maintaining their antiviral activities in vitro. Molecular simulation analysis confirmed that the compounds exert their inhibitory activity through binding tightly to hemagglutinin (HA2) protein near the fusion peptide and prevent virus entry. (C) 2017 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2017.06.025
• 作为产物：
  描述：

  Benzyl oleanolate 3β-O-[2,3-di-O-(2,3,4-tri-O-benzoyl-α-l-rhamnopyranosyl)-4,6-di-O-benzylid-ene-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57%的产率得到oleanolic acid 3-O-2,3-di-O-(α-L-rhamnopyranosyl)-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

文献信息

• Synthesis and antitumor activities of naturally occurring oleanolic acid triterpenoid saponins and their derivatives
  作者：Qingchao Liu、Hongchun Liu、Lei Zhang、Tiantian Guo、Peng Wang、Meiyu Geng、Yingxia Li

  DOI：10.1016/j.ejmech.2013.04.016

  日期：2013.6

  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.
• Structure-activity relationships of 3-O-β-chacotriosyl oleanic acid derivatives as entry inhibitors for highly pathogenic H5N1 influenza virus
  作者：Sumei Li、Xiuhua Jia、Xintian Shen、Zhuwen Wei、Zhiyan Jiang、Yixian Liao、Yiming Guo、Xiaojun Zheng、Guohua Zhong、Gaopeng Song

  DOI：10.1016/j.bmc.2017.06.025

  日期：2017.8

  Highly pathogenic H5N1 virus (H5N1) entry is a key target for the development of novel anti-influenza agents with new mechanisms of action. In our continuing efforts to identify novel potential anti-H5N1 entry inhibitors, a series of 3-O-beta-chacotriosyl oleanolic acid analogs have been designed, synthesized and evaluated as H5N1 entry inhibitors based on two small molecule inhibitors 1 and 2 previously discovered by us. The anti-H5N1 entry activities were determined based on HA/HIV and VSVG/HIV entry assays. Compound 15 displayed the most promising anti-H5N1 entry activities with average IC50 values of 4.05 mu M and good selective index (22.9). Detailed structure-activity relationships (SARs) studies suggested that either the introduction of an additional oxo group to position 11 at OA or alteration of the C-3 configuration of OA from 3 beta- to 3 alpha-forms can significantly enhance the selective index while maintaining their antiviral activities in vitro. Molecular simulation analysis confirmed that the compounds exert their inhibitory activity through binding tightly to hemagglutinin (HA2) protein near the fusion peptide and prevent virus entry. (C) 2017 Elsevier Ltd. All rights reserved.