5-[(S)-2-Imidazol-1-yl-1,3-diphenyl-prop-(E)-ylideneaminooxy]-pentanoic acid ethyl ester | 188548-75-6

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 直链 1,3-二芳基丙烷
• 英文名称: 5-[(S)-2-Imidazol-1-yl-1,3-diphenyl-prop-(E)-ylideneaminooxy]-pentanoic acid ethyl ester
• CAS: 188548-75-6
• 化学式: C₂₅H₂₉N₃O₃
• 分子量: 419.524
• InChiKey: YJXPXGGMHOUHKH-UQWHDRFCSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.82
• 重原子数：
  31.0
• 可旋转键数：
  12.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  65.71
• 氢给体数：
  0.0
• 氢受体数：
  6.0

反应信息

• 作为反应物：
  描述：

  5-[(S)-2-Imidazol-1-yl-1,3-diphenyl-prop-(E)-ylideneaminooxy]-pentanoic acid ethyl ester 在 lithium hydroxide 作用下， 以 四氢呋喃 为溶剂， 反应 2.5h， 以82%的产率得到(E)-(S)-5-aminooxy-[(2-imidazol-1-yl)-1,3-diphenyl-propyliden]pentanoic acid
  参考文献：
  名称：

  Nucleophilic substitution on α-mesyloxy-O-alkyloximes—I. Enantiospecific synthesis of 2-(imidazol-1-yl)-1,3-diphenylpropan-1-one O-alkyloximes

  摘要：

  An enantiospecific synthesis of (S)- and (R)-(E)-5-[1,3-diphenyl-2-(imidazol-l-yl)propylidene] aminooxypentanoic acids 1 using homochiral phenylalanines as starting material is described. Chiral alpha-hydroxyketones 9 were obtained from alpha-hydroxyacids 7 by Weinreb's ketone synthesis. Imidazole introduction by nucleophilic substitution on mesylate 10 led to 2-(imidazol-1-yl)propan-1-one derivative 3, key intermediate in the synthesis of 1. However, the low configurational stability displayed by compound 3 compromised its use in an enantiospecific synthesis. Homochiral compounds 1 were then obtained by a nucleophilic substitution on alpha-mesyloxy-O-alkyloxymes 14 which were in turn obtained from 9. This nucleophilic substitution on alpha-mesyloxy-O-alkyloxymes was not previously reported either on homochiral compounds or on racemic derivatives. (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0957-4166(96)00505-8
• 作为产物：
  描述：

  2-hydroxy-N-methoxy-N-methyl-3-phenylpropanamide 在 吡啶 、 三乙胺 作用下， 以 四氢呋喃 、 乙醚 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 11.5h， 生成 5-[(S)-2-Imidazol-1-yl-1,3-diphenyl-prop-(E)-ylideneaminooxy]-pentanoic acid ethyl ester
  参考文献：
  名称：

  Nucleophilic substitution on α-mesyloxy-O-alkyloximes—I. Enantiospecific synthesis of 2-(imidazol-1-yl)-1,3-diphenylpropan-1-one O-alkyloximes

  摘要：

  An enantiospecific synthesis of (S)- and (R)-(E)-5-[1,3-diphenyl-2-(imidazol-l-yl)propylidene] aminooxypentanoic acids 1 using homochiral phenylalanines as starting material is described. Chiral alpha-hydroxyketones 9 were obtained from alpha-hydroxyacids 7 by Weinreb's ketone synthesis. Imidazole introduction by nucleophilic substitution on mesylate 10 led to 2-(imidazol-1-yl)propan-1-one derivative 3, key intermediate in the synthesis of 1. However, the low configurational stability displayed by compound 3 compromised its use in an enantiospecific synthesis. Homochiral compounds 1 were then obtained by a nucleophilic substitution on alpha-mesyloxy-O-alkyloxymes 14 which were in turn obtained from 9. This nucleophilic substitution on alpha-mesyloxy-O-alkyloxymes was not previously reported either on homochiral compounds or on racemic derivatives. (C) 1997 Elsevier Science Ltd.

  DOI：

  10.1016/s0957-4166(96)00505-8