tert-butyldimethylsilyl 3,4-di-O-benzyl-2-deoxy-6-O-levulinyl-2-trichloroacetylamino-α-D-glucopyranoside | 503181-27-9

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 糖脂
• 英文名称: tert-butyldimethylsilyl 3,4-di-O-benzyl-2-deoxy-6-O-levulinyl-2-trichloroacetylamino-α-D-glucopyranoside
• CAS: 503181-27-9
• 化学式: C₃₃H₄₄Cl₃NO₈Si
• 分子量: 717.159
• InChiKey: ADSAGUIZAPUMHG-VDFIJDOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.67
• 重原子数：
  46.0
• 可旋转键数：
  14.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  109.39
• 氢给体数：
  1.0
• 氢受体数：
  8.0

反应信息

• 作为反应物：
  描述：

  tert-butyldimethylsilyl 3,4-di-O-benzyl-2-deoxy-6-O-levulinyl-2-trichloroacetylamino-α-D-glucopyranoside 在 四丁基氟化铵 、 溶剂黄146 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 5.5h， 生成 3,4-di-O-benzyl-2-deoxy-6-O-levulinyl-2-trichloroacetylamino-α-D-glucopyranosyl trichloroacetimidate
  参考文献：
  名称：

  Toward the automated solid-phase synthesis of oligoglucosamines: systematic evaluation of glycosyl phosphate and glycosyl trichloroacetimidate building blocks

  摘要：

  Glucosamines are common components of many biologically important oligosaccharides. Reported is a systematic evaluation of glucosamine phosphates and trichloroacetimidates as glycosylating agents for the efficient construction of beta-(1 --> 6) glucosamine linkages. A set of differentially protected glucosamine donors incorporating a host of amine protecting groups, including 2-phthaloyl, benzyloxycarbonyl (Z), trichloroetheoxycarbonyl (Troc) and trichloroacetyl (TCA) protective groups. were prepared. Donors were initially evaluated for reactivity and protecting group compatibility in a solution-phase study with a model 6-hydroxyl galactose acceptor. Based on these results, glucosamine donor 10 was selected for the solution-phase synthesis of a beta-(1 --> 6)-glucosamine pentasaccharide. Finally, building block 10 proved well suited for use in the automated solid-phase synthesis of a repeating unit trisaccharide. An assessment of glucosamine phosphate donors as potential glycosylating agents for a variety of glucosamine linkages is also discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0008-6215(02)00299-9
• 作为产物：
  描述：

  tert-butyldimethylsilyl 3-O-benzyl-4,6-O-benzylidene-2-deoxy-2-trichloroacetylamino-α-D-glucopyranoside 在 4-二甲氨基吡啶 、 碳酸二异丙酯 、 三氟甲磺酸二丁硼 、 硼烷 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 7.0h， 生成 tert-butyldimethylsilyl 3,4-di-O-benzyl-2-deoxy-6-O-levulinyl-2-trichloroacetylamino-α-D-glucopyranoside
  参考文献：
  名称：

  Toward the automated solid-phase synthesis of oligoglucosamines: systematic evaluation of glycosyl phosphate and glycosyl trichloroacetimidate building blocks

  摘要：

  Glucosamines are common components of many biologically important oligosaccharides. Reported is a systematic evaluation of glucosamine phosphates and trichloroacetimidates as glycosylating agents for the efficient construction of beta-(1 --> 6) glucosamine linkages. A set of differentially protected glucosamine donors incorporating a host of amine protecting groups, including 2-phthaloyl, benzyloxycarbonyl (Z), trichloroetheoxycarbonyl (Troc) and trichloroacetyl (TCA) protective groups. were prepared. Donors were initially evaluated for reactivity and protecting group compatibility in a solution-phase study with a model 6-hydroxyl galactose acceptor. Based on these results, glucosamine donor 10 was selected for the solution-phase synthesis of a beta-(1 --> 6)-glucosamine pentasaccharide. Finally, building block 10 proved well suited for use in the automated solid-phase synthesis of a repeating unit trisaccharide. An assessment of glucosamine phosphate donors as potential glycosylating agents for a variety of glucosamine linkages is also discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0008-6215(02)00299-9