tert-butyl (2S)-2-((4S,5R)-4,5-dimethyl-4-hydroxy-5-methoxy-2-oxooxazolidin-3-yl)-3-(tri-O-acetyl-2-acetamido-2-deoxy-α-D-galactosylthio)propanoate | 1533407-67-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: tert-butyl (2S)-2-((4S,5R)-4,5-dimethyl-4-hydroxy-5-methoxy-2-oxooxazolidin-3-yl)-3-(tri-O-acetyl-2-acetamido-2-deoxy-α-D-galactosylthio)propanoate
• CAS: 1533407-67-8
• 化学式: C₂₇H₄₂N₂O₁₄S
• 分子量: 650.701
• InChiKey: FPUCNCGYEKGZGU-BXDQIPCQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.61
• 重原子数：
  44.0
• 可旋转键数：
  11.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  202.53
• 氢给体数：
  2.0
• 氢受体数：
  15.0

反应信息

• 作为反应物：
  描述：

  tert-butyl (2S)-2-((4S,5R)-4,5-dimethyl-4-hydroxy-5-methoxy-2-oxooxazolidin-3-yl)-3-(tri-O-acetyl-2-acetamido-2-deoxy-α-D-galactosylthio)propanoate 在 盐酸 作用下， 以 水 为溶剂， 以73%的产率得到S-(2-acetamido-2-deoxy-α-D-galactosyl)-D-cysteine hydrochloride
  参考文献：
  名称：

  S-Michael Additions to Chiral Dehydroalanines as an Entry to Glycosylated Cysteines and a Sulfa-Tn Antigen Mimic

  摘要：

  Stereoselective sulfa-Michael addition of appropriately protected thiocarbohydrates to chiral dehydroalanines has been developed as a key step in the synthesis of biologically important cysteine derivatives, such as S-(beta-D-glucopyranosyl)-D-cysteine, which has not been synthesized to date, and S-(2-acetamido-2-deoxy-alpha-D-galactopyranosyl)-L-cysteine, which could be considered as a mimic of Tn antigen. The corresponding diamide derivative was also synthesized and analyzed from a conformational viewpoint, and its bound state with a lectin was studied.

  DOI：

  10.1021/ja411522f
• 作为产物：
  描述：

  (3S,7R,7aS)-7-methoxy-7,7a-dimethyl-5-oxo-2,3-dihydro-[1,3]oxazolo[3,2-c][1,3]oxazole-3-carboxylic acid 在 4-二甲氨基吡啶 、 双(三甲基硅烷基)氨基钾 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 四氢呋喃 、 叔丁醇 为溶剂， 反应 6.17h， 生成 tert-butyl (2S)-2-((4S,5R)-4,5-dimethyl-4-hydroxy-5-methoxy-2-oxooxazolidin-3-yl)-3-(tri-O-acetyl-2-acetamido-2-deoxy-α-D-galactosylthio)propanoate
  参考文献：
  名称：

  S-Michael Additions to Chiral Dehydroalanines as an Entry to Glycosylated Cysteines and a Sulfa-Tn Antigen Mimic

  摘要：

  Stereoselective sulfa-Michael addition of appropriately protected thiocarbohydrates to chiral dehydroalanines has been developed as a key step in the synthesis of biologically important cysteine derivatives, such as S-(beta-D-glucopyranosyl)-D-cysteine, which has not been synthesized to date, and S-(2-acetamido-2-deoxy-alpha-D-galactopyranosyl)-L-cysteine, which could be considered as a mimic of Tn antigen. The corresponding diamide derivative was also synthesized and analyzed from a conformational viewpoint, and its bound state with a lectin was studied.

  DOI：

  10.1021/ja411522f