1-(4-tolyl)thio-2,3-O-isopropylidene-4-O-(1-methoxy-1-methylethyl)-β-D-xylopyranoside | 1445703-80-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氧吡喃
• 英文名称: 1-(4-tolyl)thio-2,3-O-isopropylidene-4-O-(1-methoxy-1-methylethyl)-β-D-xylopyranoside
• 英文别名: (3aR,4S,7R,7aS)-7-(2-methoxypropan-2-yloxy)-2,2-dimethyl-4-(4-methylphenyl)sulfanyl-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran
• CAS: 1445703-80-9
• 化学式: C₁₉H₂₈O₅S
• 分子量: 368.494
• InChiKey: UZCPKRJLVUOITA-TWMKSMIVSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  25
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.68
• 拓扑面积：
  71.4
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  1-(4-tolyl)thio-2,3-O-isopropylidene-4-O-(1-methoxy-1-methylethyl)-β-D-xylopyranoside 在 吡啶 、 4-二甲氨基吡啶 、 三氟甲磺酸三甲基硅酯 、 对甲苯磺酸 、 乙酰氯 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 反应 12.5h， 生成 2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl-(1 → 4)-1-(4-tolyl)thio-2,3-di-O-benzoyl-β-D-xylopyranoside
  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-甲氧基丙烯 、 p-tolyl 1-thio-β-D-xylopyranose 、 2,2-二甲氧基丙烷 在 三氟乙酸 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 12.0h， 以65%的产率得到1-(4-tolyl)thio-2,3-O-isopropylidene-4-O-(1-methoxy-1-methylethyl)-β-D-xylopyranoside
  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.