1-O-benzyl 2-O-methyl (2R,4S)-4-formyloxypiperidine-1,2-dicarboxylate

• 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: 1-O-benzyl 2-O-methyl (2R,4S)-4-formyloxypiperidine-1,2-dicarboxylate
• 化学式: C₁₆H₁₉NO₆
• 分子量: 321.33
• InChiKey: DFAVWBIVBBQBNJ-UONOGXRCSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  23.0
• 可旋转键数：
  5.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  82.14
• 氢给体数：
  0.0
• 氢受体数：
  6.0

反应信息

• 作为产物：
  描述：

  (2R)-4-formylpipecolic acid methyl ester 在 甲基叔丁基醚 、 chirazyme L₉ (Mucormiehei, Roche) 作用下， 以 aq. phosphate buffer 为溶剂， 反应 96.0h， 以80%的产率得到
  参考文献：
  名称：

  Chemoenzymatic Synthesis of the Four Diastereoisomers of 4-Hydroxypipecolic Acid from N-Acetyl-(R,S)-allylglycine:  Chiral Scaffolds for Drug Discovery

  摘要：

  All four diastereoisomers of 4-hydroxypipecolic acid were prepared in a form conveniently protected for drug discovery applications with the use of industrially scaleable methodology. Resolution of the racemic starting material using proprietary acylases followed by an acyliminium ion cyclisation gave diastereomeric mixtures of 4-formyloxypipecolic acid, which were differentiated using an enzyme-catalysed hydrolysis. The products were separated, by partition, and by following a sequence of straightforward chemical steps, the individual stereoisomers of the protected 4-hydroxypipecolates were crystallized to optical purity in 100 g quantities.

  DOI：

  10.1021/op020017x

文献信息

• Chemoenzymatic Synthesis of the Four Diastereoisomers of 4-Hydroxypipecolic Acid from <i>N</i>-Acetyl-(<i>R</i>,<i>S</i>)-allylglycine:  Chiral Scaffolds for Drug Discovery
  作者：Richard C. Lloyd、Mark E. B. Smith、Dean Brick、Stephen J. C. Taylor、David A. Chaplin、Raymond McCague

  DOI：10.1021/op020017x

  日期：2002.11.1

  All four diastereoisomers of 4-hydroxypipecolic acid were prepared in a form conveniently protected for drug discovery applications with the use of industrially scaleable methodology. Resolution of the racemic starting material using proprietary acylases followed by an acyliminium ion cyclisation gave diastereomeric mixtures of 4-formyloxypipecolic acid, which were differentiated using an enzyme-catalysed hydrolysis. The products were separated, by partition, and by following a sequence of straightforward chemical steps, the individual stereoisomers of the protected 4-hydroxypipecolates were crystallized to optical purity in 100 g quantities.