(2S,4S,5R)-4-<(2-acetamido-4-O-sulfo-3,6-di-O-benzyl-2-deoxy-β-D-glucopyranosyl)oxy>-5-<(benzyloxy)methyl>-1,2-pyrrolidinedicarboxylic acid bis(phenylmethyl ester) | 132696-23-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: (2S,4S,5R)-4-<(2-acetamido-4-O-sulfo-3,6-di-O-benzyl-2-deoxy-β-D-glucopyranosyl)oxy>-5-<(benzyloxy)methyl>-1,2-pyrrolidinedicarboxylic acid bis(phenylmethyl ester)
• CAS: 132696-23-2
• 化学式: C₅₀H₅₃N₂O₁₄S*Na
• 分子量: 961.032
• InChiKey: OSGGKOMHOLETLS-GBOBMNMMSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  2.99
• 重原子数：
  68.0
• 可旋转键数：
  21.0
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.34
• 拓扑面积：
  197.52
• 氢给体数：
  1.0
• 氢受体数：
  14.0

反应信息

• 作为反应物：
  描述：

  (2S,4S,5R)-4-<(2-acetamido-4-O-sulfo-3,6-di-O-benzyl-2-deoxy-β-D-glucopyranosyl)oxy>-5-<(benzyloxy)methyl>-1,2-pyrrolidinedicarboxylic acid bis(phenylmethyl ester) 在 钯 甲酸 作用下， 以 甲醇 为溶剂， 反应 0.5h， 以70%的产率得到bulgecin C
  参考文献：
  名称：

  Electrochemical oxidation of proline derivatives: total syntheses of bulgecinine and bulgecin C

  摘要：

  The influence of structure on the efficiency of the electrochemical C-5 oxidation of (2S,4S)-hydroxyproline carbamate esters is presented. Optimum methoxylation was observed with (2S,4S)-4-acetoxy-1,2-pyrrolidine-dicarboxylic acid 2-methyl 1-(2-(trimethylsily)ethyl) ester (19). The corresponding C-5 methoxy derivative 20 was converted into bulgecinine (4) via a stereospecific radical homologation to incorporate the C-5 hydroxymethyl substituent. Bulgecin C (1c) was prepared via a beta-stereoselective glycosidation reaction using a 2-azido-2-deoxy-alpha-D-glucopyranosyl trichloroacetimidate derivative, regiospecific C-4' sulfation, and deprotection.

  DOI：

  10.1021/jo00008a040
• 作为产物：
  描述：

  (2S,4S,5R)-4-<(2-acetamido-3,6-di-O-benzyl-2-deoxy-β-D-glucopyranosyl)oxy>-5-<(benzyloxy)methyl>-1,2-pyrrolidinedicarboxylic acid bis(phenylmethyl ester) 在 三氧化硫吡啶 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以65%的产率得到(2S,4S,5R)-4-<(2-acetamido-4-O-sulfo-3,6-di-O-benzyl-2-deoxy-β-D-glucopyranosyl)oxy>-5-<(benzyloxy)methyl>-1,2-pyrrolidinedicarboxylic acid bis(phenylmethyl ester)
  参考文献：
  名称：

  Electrochemical oxidation of proline derivatives: total syntheses of bulgecinine and bulgecin C

  摘要：

  The influence of structure on the efficiency of the electrochemical C-5 oxidation of (2S,4S)-hydroxyproline carbamate esters is presented. Optimum methoxylation was observed with (2S,4S)-4-acetoxy-1,2-pyrrolidine-dicarboxylic acid 2-methyl 1-(2-(trimethylsily)ethyl) ester (19). The corresponding C-5 methoxy derivative 20 was converted into bulgecinine (4) via a stereospecific radical homologation to incorporate the C-5 hydroxymethyl substituent. Bulgecin C (1c) was prepared via a beta-stereoselective glycosidation reaction using a 2-azido-2-deoxy-alpha-D-glucopyranosyl trichloroacetimidate derivative, regiospecific C-4' sulfation, and deprotection.

  DOI：

  10.1021/jo00008a040