Methyl 2(R)-(benzylamino)-3-<(S)-1-(tert-butyloxycarbonyl)amino>-4-phenylbutanoate | 159611-91-3

• 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: Methyl 2(R)-(benzylamino)-3-<(S)-1-(tert-butyloxycarbonyl)amino>-4-phenylbutanoate
• CAS: 159611-91-3
• 化学式: C₂₃H₃₀N₂O₄
• 分子量: 398.502
• InChiKey: RODBKDGVNLNYTJ-VQTJNVASSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.45
• 重原子数：
  29.0
• 可旋转键数：
  8.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.39
• 拓扑面积：
  76.66
• 氢给体数：
  2.0
• 氢受体数：
  5.0

反应信息

• 作为反应物：
  描述：

  Methyl 2(R)-(benzylamino)-3-<(S)-1-(tert-butyloxycarbonyl)amino>-4-phenylbutanoate 在 palladium on activated charcoal ammonium formate 作用下， 以 甲醇 为溶剂， 以93%的产率得到Methyl 2(R)-amino-3-<(S)-1-(tert-butyloxycarbonyl)amino>-4-phenylbutanoate
  参考文献：
  名称：

  New Synthesis of .alpha.-Amino Acid N-Carboxy Anhydrides through Baeyer-Villiger Oxidation of .alpha.-Keto .beta.-Lactams

  摘要：

  A conceptually new route for the generation of optically active alpha-aminoacid N-carboxy anhydrides (NCAs) and hence alpha-amino acid derivatives is described. The strategy developed is simple and consists of the oxidation of alpha-hydroxy beta-lactams to the corresponding alpha-keto beta-lactams followed by a Baeyer-Villiger rearrangement. By that means, a wide variety of functionalized alpha-aminoacid N-carboxy anhydrides can be obtained, i.e., alpha,beta-diamino acid and alpha-amino beta-hydroxy acid-derived NCAs. The starting alpha-hydroxy(alkoxy) beta-lactams required for the study are easily prepared in large quantities either by the cycloaddition reaction of achiral alkoxyketenes with chiral aldehyde-derived imines or by the addition of Grignard reagents to a 3-(benzyloxy)-4-formylazetidin-2-one. The construction of a wide variety of NCA's from non-amino acid precursors becomes the most remarkable point of the reaction methodology developed.

  DOI：

  10.1021/jo00090a033
• 作为产物：
  描述：

  (4R)-1-Benzyl-4-<(S)-1-<(tert-butyloxycarbonyl)amino>phenethyl>azetidine-2,3-dione 在 间氯过氧苯甲酸 作用下， 以 二氯甲烷 为溶剂， 反应 3.0h， 生成 Methyl 2(R)-(benzylamino)-3-<(S)-1-(tert-butyloxycarbonyl)amino>-4-phenylbutanoate
  参考文献：
  名称：

  New Synthesis of .alpha.-Amino Acid N-Carboxy Anhydrides through Baeyer-Villiger Oxidation of .alpha.-Keto .beta.-Lactams

  摘要：

  A conceptually new route for the generation of optically active alpha-aminoacid N-carboxy anhydrides (NCAs) and hence alpha-amino acid derivatives is described. The strategy developed is simple and consists of the oxidation of alpha-hydroxy beta-lactams to the corresponding alpha-keto beta-lactams followed by a Baeyer-Villiger rearrangement. By that means, a wide variety of functionalized alpha-aminoacid N-carboxy anhydrides can be obtained, i.e., alpha,beta-diamino acid and alpha-amino beta-hydroxy acid-derived NCAs. The starting alpha-hydroxy(alkoxy) beta-lactams required for the study are easily prepared in large quantities either by the cycloaddition reaction of achiral alkoxyketenes with chiral aldehyde-derived imines or by the addition of Grignard reagents to a 3-(benzyloxy)-4-formylazetidin-2-one. The construction of a wide variety of NCA's from non-amino acid precursors becomes the most remarkable point of the reaction methodology developed.

  DOI：

  10.1021/jo00090a033