(S)-3-((2S,3R,4R,5R,6R)-3-Acetylamino-4,5-dihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-propionic acid 2-oxo-2-phenyl-ethyl ester | 188245-72-9

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (S)-3-((2S,3R,4R,5R,6R)-3-Acetylamino-4,5-dihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-propionic acid 2-oxo-2-phenyl-ethyl ester
• CAS: 188245-72-9
• 化学式: C₃₄H₃₆N₂O₁₁
• 分子量: 648.667
• InChiKey: SZSVTIRIENIXQR-WSRUOPEKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.28
• 重原子数：
  47.0
• 可旋转键数：
  12.0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.35
• 拓扑面积：
  189.95
• 氢给体数：
  5.0
• 氢受体数：
  11.0

反应信息

• 作为反应物：
  描述：

  (S)-3-((2S,3R,4R,5R,6R)-3-Acetylamino-4,5-dihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-propionic acid 2-oxo-2-phenyl-ethyl ester 在 三氟甲磺酸三甲基硅酯 、 对甲苯磺酸 、 溶剂黄146 作用下， 以 四氢呋喃 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 2.0h， 生成
  参考文献：
  名称：

  A novel glycosyl donor for the synthesis of cancer specific core 5 and sialyl core 5 as glycopeptide building blocks

  摘要：

  Trichloroacetimidate at 1 and 3 position of 4,6-benzylidenyl N-acetylgalactosamine serves as a leaving group for glycosylation and a selective and acid sensitive protecting group respectively. This versatile donor, while forming exclusive alpha-glycoside with serine/threonine, serves as a fascile precursor to 3-OH which can be generated in acid medium without affecting 4,6-acetal protecting group or the protecting groups of serine/threonine. Synthesis of cancer associated carbohydrate Core 5 and its sialylated analog are accomplished through the use of this donor. (C) 1997, Elsevier Science Ltd.

  DOI：

  10.1016/s0040-4039(96)02490-2
• 作为产物：
  描述：

  (S)-3-[(2S,4aR,6S,7R,8R,8aR)-7-Acetylamino-2-phenyl-8-(2,2,2-trichloro-acetimidoyloxy)-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy]-2-(9H-fluoren-9-ylmethoxycarbonylamino)-propionic acid 2-oxo-2-phenyl-ethyl ester 在 溶剂黄146 作用下， 以 水 为溶剂， 反应 2.0h， 以90%的产率得到(S)-3-((2S,3R,4R,5R,6R)-3-Acetylamino-4,5-dihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-propionic acid 2-oxo-2-phenyl-ethyl ester
  参考文献：
  名称：

  A novel glycosyl donor for the synthesis of cancer specific core 5 and sialyl core 5 as glycopeptide building blocks

  摘要：

  Trichloroacetimidate at 1 and 3 position of 4,6-benzylidenyl N-acetylgalactosamine serves as a leaving group for glycosylation and a selective and acid sensitive protecting group respectively. This versatile donor, while forming exclusive alpha-glycoside with serine/threonine, serves as a fascile precursor to 3-OH which can be generated in acid medium without affecting 4,6-acetal protecting group or the protecting groups of serine/threonine. Synthesis of cancer associated carbohydrate Core 5 and its sialylated analog are accomplished through the use of this donor. (C) 1997, Elsevier Science Ltd.

  DOI：

  10.1016/s0040-4039(96)02490-2