tert-butyl (3S,4S,αR)-3-[N-benzyl-N-(α-methylbenzyl)amino]-4-(N,N-dibenzylamino)pentanoate | 1350910-35-8

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: tert-butyl (3S,4S,αR)-3-[N-benzyl-N-(α-methylbenzyl)amino]-4-(N,N-dibenzylamino)pentanoate
• 英文别名: tert-butyl (3S,4S)-3-[benzyl-[(1R)-1-phenylethyl]amino]-4-(dibenzylamino)pentanoate
• CAS: 1350910-35-8
• 化学式: C₃₈H₄₆N₂O₂
• 分子量: 562.795
• InChiKey: WJJQNOAFQRBMQV-IJXWMGFQSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8
• 重原子数：
  42
• 可旋转键数：
  15
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.34
• 拓扑面积：
  32.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  tert-butyl (3S,4S,αR)-3-[N-benzyl-N-(α-methylbenzyl)amino]-4-(N,N-dibenzylamino)pentanoate 在 盐酸 、 20 % Pd(OH)2/C 、 氢气 作用下， 以 甲醇 为溶剂， 20.0 ℃ 、506.66 kPa 条件下， 反应 48.0h， 以248 mg的产率得到
  参考文献：
  名称：

  Parallel Kinetic Resolution of Acyclic γ-Amino-α,β-unsaturated Esters: Application to the Asymmetric Synthesis of 4-Aminopyrrolidin-2-ones

  摘要：

  Conjugate addition of a 50:50 pseudoenantiomeric mixture of lithium (R)-N-benzyl-N(alpha-methylbenzyl)amide and lithium (S)-N-3,4-dimethoxybenzyl-N-(alpha-methylbenzyl)amide to a range of racemic acyclic gamma-amino-alpha,beta-unsaturated esters (derived from the corresponding a-amino acids) effects their efficient parallel kinetic resolution, allowing the preparation of enantiopure beta,gamma-diamino esters. The beta,gamma-dlamlno ester products of these reactions are readily converted into the corresponding substituted 4-aminopyrrolidin-2-ones via N-debenzylation and cyclization.

  DOI：

  10.1021/ol203011u
• 作为产物：
  描述：

  tert-butyl (RS,E)-4-(N,N-dibenzylamino)pent-2-enoate 、 (R)-(+)-N-苄基-1-苯乙胺 、 (S)-(-)-(3,4-二甲氧基)苄基-1-苯乙胺 在 正丁基锂 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 2.5h， 以40%的产率得到tert-butyl (3S,4S,αR)-3-[N-benzyl-N-(α-methylbenzyl)amino]-4-(N,N-dibenzylamino)pentanoate
  参考文献：
  名称：

  Parallel Kinetic Resolution of Acyclic γ-Amino-α,β-unsaturated Esters: Application to the Asymmetric Synthesis of 4-Aminopyrrolidin-2-ones

  摘要：

  Conjugate addition of a 50:50 pseudoenantiomeric mixture of lithium (R)-N-benzyl-N(alpha-methylbenzyl)amide and lithium (S)-N-3,4-dimethoxybenzyl-N-(alpha-methylbenzyl)amide to a range of racemic acyclic gamma-amino-alpha,beta-unsaturated esters (derived from the corresponding a-amino acids) effects their efficient parallel kinetic resolution, allowing the preparation of enantiopure beta,gamma-diamino esters. The beta,gamma-dlamlno ester products of these reactions are readily converted into the corresponding substituted 4-aminopyrrolidin-2-ones via N-debenzylation and cyclization.

  DOI：

  10.1021/ol203011u

文献信息

• Parallel Kinetic Resolution of Acyclic γ-Amino-α,β-unsaturated Esters: Application to the Asymmetric Synthesis of 4-Aminopyrrolidin-2-ones
  作者：Stephen G. Davies、James A. Lee、Paul M. Roberts、James E. Thomson、Jingda Yin

  DOI：10.1021/ol203011u

  日期：2012.1.6

  Conjugate addition of a 50:50 pseudoenantiomeric mixture of lithium (R)-N-benzyl-N(alpha-methylbenzyl)amide and lithium (S)-N-3,4-dimethoxybenzyl-N-(alpha-methylbenzyl)amide to a range of racemic acyclic gamma-amino-alpha,beta-unsaturated esters (derived from the corresponding a-amino acids) effects their efficient parallel kinetic resolution, allowing the preparation of enantiopure beta,gamma-diamino esters. The beta,gamma-dlamlno ester products of these reactions are readily converted into the corresponding substituted 4-aminopyrrolidin-2-ones via N-debenzylation and cyclization.