5-[(S)-2-Methanesulfonyloxy-1,3-diphenyl-prop-(E)-ylideneaminooxy]-pentanoic acid ethyl ester

• 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-Methanesulfonyloxy-1,3-diphenyl-prop-(E)-ylideneaminooxy]-pentanoic acid ethyl ester
• 英文别名: ethyl 5-[(E)-[(2S)-2-methylsulfonyloxy-1,3-diphenylpropylidene]amino]oxypentanoate
• 化学式: C₂₃H₂₉NO₆S
• 分子量: 447.552
• InChiKey: BAVFAHOMSKQHKN-ZGBROZEESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  31
• 可旋转键数：
  14
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.39
• 拓扑面积：
  99.6
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  5-[(S)-2-Methanesulfonyloxy-1,3-diphenyl-prop-(E)-ylideneaminooxy]-pentanoic acid ethyl ester 在 lithium hydroxide 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 反应 10.5h， 生成 (E)-(R)-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：

  (S)-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 为溶剂， 反应 3.5h， 生成 5-[(S)-2-Methanesulfonyloxy-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

文献信息

• Nucleophilic substitution on α-mesyloxy-O-alkyloximes—I. Enantiospecific synthesis of 2-(imidazol-1-yl)-1,3-diphenylpropan-1-one O-alkyloximes
  作者：Antonio Giordani、Alberto Carera、Vittorio Pinciroli、Paolo Cozzi

  DOI：10.1016/s0957-4166(96)00505-8

  日期：1997.1

  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.