Cbz-D,L-Leu-OBzl | 126401-00-1

• 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: Cbz-D,L-Leu-OBzl
• 英文别名: Benzyl 4-methyl-2-(phenylmethoxycarbonylamino)pentanoate
• CAS: 126401-00-1
• 化学式: C₂₁H₂₅NO₄
• 分子量: 355.434
• InChiKey: NSOIBRXPOHQRKI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  26
• 可旋转键数：
  10
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  64.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  L-丙氨酰胺 、 Cbz-D,L-Leu-OBzl 以 叔丁醇 为溶剂， 反应 2.0h， 以71%的产率得到Cbz-Leu-Ala-NH2
  参考文献：
  名称：

  Kinetically controlled peptide bond formation in anhydrous alcohol catalyzed by the industrial protease alcalase

  摘要：

  The industrial alkaline protease alcalase has been found to be very stable (half life > 5 days in ethanol or 2-methyl-2-propanol) and active in alcoholic solvents (except methanol). Procedures have been developed for alcalase-catalyzed, kinetically controlled peptide bond formation in anhydrous alcohol(ethanol, 2-methyl-2-propanol). Studies of the selectivity of an alcalase-catalyzed reaction show that only L-amino acid acyl donors are substrates at the p-1 subsite of alcalase; at the p-1' subsite both D- and L-amino acid nucleophiles are substrates. Other amino compounds such as benzylamine and phenylhydrazine are good nucleophiles. Studies of the effect of the water content of the reaction solution on the yield in the synthesis of Moz-Phe-Leu-NH2 showed that the 95% yield obtained in anhydrous 2-methyl-2-propanol was decreased to 48% in 2-methyl-2-propanol containing 4.86% water.

  DOI：

  10.1021/jo00051a052

文献信息

• Kinetically controlled peptide bond formation in anhydrous alcohol catalyzed by the industrial protease alcalase
  作者：Shui Tein Chen、Shiah Yun Chen、Kung Tsung Wang

  DOI：10.1021/jo00051a052

  日期：1992.12

  The industrial alkaline protease alcalase has been found to be very stable (half life > 5 days in ethanol or 2-methyl-2-propanol) and active in alcoholic solvents (except methanol). Procedures have been developed for alcalase-catalyzed, kinetically controlled peptide bond formation in anhydrous alcohol(ethanol, 2-methyl-2-propanol). Studies of the selectivity of an alcalase-catalyzed reaction show that only L-amino acid acyl donors are substrates at the p-1 subsite of alcalase; at the p-1' subsite both D- and L-amino acid nucleophiles are substrates. Other amino compounds such as benzylamine and phenylhydrazine are good nucleophiles. Studies of the effect of the water content of the reaction solution on the yield in the synthesis of Moz-Phe-Leu-NH2 showed that the 95% yield obtained in anhydrous 2-methyl-2-propanol was decreased to 48% in 2-methyl-2-propanol containing 4.86% water.