phenyl 2-acetamido-3,4,6-tri-O-benzoyl-2-deoxy-β-D-glucopyranosyl(1->3)-2-O-benzoyl-1-thio-β-D-galactopyranoside | 653572-81-7

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: phenyl 2-acetamido-3,4,6-tri-O-benzoyl-2-deoxy-β-D-glucopyranosyl(1->3)-2-O-benzoyl-1-thio-β-D-galactopyranoside
• CAS: 653572-81-7
• 化学式: C₄₈H₄₅NO₁₄S
• 分子量: 891.95
• InChiKey: KTTVPAKNGRGNAQ-WTKFZNQLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.01
• 重原子数：
  64.0
• 可旋转键数：
  15.0
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.27
• 拓扑面积：
  202.45
• 氢给体数：
  3.0
• 氢受体数：
  15.0

反应信息

• 作为反应物：
  描述：

  丙酮酸甲酯 、 phenyl 2-acetamido-3,4,6-tri-O-benzoyl-2-deoxy-β-D-glucopyranosyl(1->3)-2-O-benzoyl-1-thio-β-D-galactopyranoside 在 三氟化硼乙醚 作用下， 以 乙腈 为溶剂， 反应 3.0h， 以45%的产率得到phenyl 2-acetamido-3,4,6-tri-O-benzoyl-2-deoxy-β-D-glucopyranosyl(1->3)-2-O-benzoyl-4,6-O-[(R)-1-(methoxycarbonyl)ethylidene]-1-thio-β-D-galactopyranoside
  参考文献：
  名称：

  Synthesis of a Blocked Tetrasaccharide Related to the Repeating Unit of the Antigen from Shigella dysenteriae Type 9 in the Form of Its Methyl (R)‐Pyruvate Ester and 2‐(Trimethylsilyl)Ethyl Glycoside

  摘要：

  Starting from D-mannose, D-galactose and D-glucosamine hydrochloride, two disaccharide blocks were synthesized. Schmidt's inverse addition technique of trichloroacetimidate was utilized for the construction of a disaccharide with a beta-mannosidic linkage in good yield. The other disaccharide had a methyl 4,6-(R)pyruvate ester. The two disaccharides in the appropriate form were then allowed to react in the presence of N-iodosuccinimide (NIS) and trifluoromethanesulfonic acid (TfOH) to give the desired tetrasaccharide derivative, 2-(trimethylsilyl)ethyl 2-acetamido-3,4,6-tri-O-benzoyl-2-deoxy-beta-D-glucopyranosyl-(l --> 3)-2-O-benzoyl-4,6-O-[(R)-1-methoxycarbonylethylidene]-beta-D-galactopyranosyl-(I --> 4)-2,3,6-tri-O-benzyl-beta-D-mannopyranosyl-(1 --> 4)-2,6-di-O-benzyl-3-O-(4-methoxybenzyl)-beta-D-galactopyranoside.

  DOI：

  10.1081/car-120026456
• 作为产物：
  描述：

  phenyl 2-O-acetyl-6-O-(tert-butyl(diphenyl)silyl)-3,4-O-isopropylidene-1-thio-β-D-galactopyranoside 在 吡啶 、 4 A molecular sieve 、 D(+)-10-樟脑磺酸 、 四丁基氟化铵 、 三乙基硅基三氟甲磺酸酯 、 sodium methylate 、 溶剂黄146 、 乙二胺 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 、 乙腈 、 正丁醇 为溶剂， 反应 49.5h， 生成 phenyl 2-acetamido-3,4,6-tri-O-benzoyl-2-deoxy-β-D-glucopyranosyl(1->3)-2-O-benzoyl-1-thio-β-D-galactopyranoside
  参考文献：
  名称：

  Synthesis of a Blocked Tetrasaccharide Related to the Repeating Unit of the Antigen from Shigella dysenteriae Type 9 in the Form of Its Methyl (R)‐Pyruvate Ester and 2‐(Trimethylsilyl)Ethyl Glycoside

  摘要：

  Starting from D-mannose, D-galactose and D-glucosamine hydrochloride, two disaccharide blocks were synthesized. Schmidt's inverse addition technique of trichloroacetimidate was utilized for the construction of a disaccharide with a beta-mannosidic linkage in good yield. The other disaccharide had a methyl 4,6-(R)pyruvate ester. The two disaccharides in the appropriate form were then allowed to react in the presence of N-iodosuccinimide (NIS) and trifluoromethanesulfonic acid (TfOH) to give the desired tetrasaccharide derivative, 2-(trimethylsilyl)ethyl 2-acetamido-3,4,6-tri-O-benzoyl-2-deoxy-beta-D-glucopyranosyl-(l --> 3)-2-O-benzoyl-4,6-O-[(R)-1-methoxycarbonylethylidene]-beta-D-galactopyranosyl-(I --> 4)-2,3,6-tri-O-benzyl-beta-D-mannopyranosyl-(1 --> 4)-2,6-di-O-benzyl-3-O-(4-methoxybenzyl)-beta-D-galactopyranoside.

  DOI：

  10.1081/car-120026456