methyl (2S,4S)-N-(tert-butyloxy)carbonyl-4-PEG₄yloxypyrrolidine-2-carboxylate | 1445166-88-0

• 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 (2S,4S)-N-(tert-butyloxy)carbonyl-4-PEG₄yloxypyrrolidine-2-carboxylate
• 英文别名: 1-O-tert-butyl 2-O-methyl (2S,4S)-4-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]pyrrolidine-1,2-dicarboxylate
• CAS: 1445166-88-0
• 化学式: C₂₀H₃₇NO₉
• 分子量: 435.515
• InChiKey: WIYUHBBUOGDXKZ-IRXDYDNUSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  30
• 可旋转键数：
  17
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.9
• 拓扑面积：
  102
• 氢给体数：
  0
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  methyl (2S,4S)-N-(tert-butyloxy)carbonyl-4-PEG₄yloxypyrrolidine-2-carboxylate 在 锂硼氢 、 sodium hydride 、 caesium carbonate 、 N,N-二异丙基乙胺 、 三氟乙酸 作用下， 以 四氢呋喃 、 二氯甲烷 、 氯仿 、 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 1.67h， 生成 N-butyl-(2S,4S)-5-[1-(2-methoxymethyl-4-PEG₄yloxypyrrolidinyl)sulfonyl]isatin
  参考文献：
  名称：

  Influence of 4- or 5-substituents on the pyrrolidine ring of 5-[1-(2-methoxymethylpyrrolidinyl)sulfonyl]isatin derivatives on their inhibitory activities towards caspases-3 and -7

  摘要：

  A series of new 4- or 5-substituted pyrrolidine derivatives of 5-[1-(2-methoxymethylpyrrolidinyl)sulfonyl]isatin bearing additional n-butyl or 4-fluorobutyl groups at the isatin nitrogen were prepared and their inhibitory activities have been tested against caspases-3 and -7, which are known to participate in the execution of the programmed cell death, called apoptosis. Several analogues fluorinated at the 4-position of the pyrrolidine ring were also synthesized since such inhibitors might be developed as F-18-radiotracers for molecular imaging of activated caspases in vivo by PET. Enantiomerically pure diastereomeric 4-fluoropyrrolidinyl derivatives inhibited the enzymes in the nanomolar scale, i.e.100-1000 times more efficient than the corresponding 4-methoxy analogues. The 4,4-difluorinated compound showed the best result with IC50 = 362 nM and 178 nM for the aforementioned caspases. In contrast, the 4-methoxy and 4-trifluoromethyl analogues exhibited less inhibition potencies for the enzymes in the mu M scale, whereas all 4-OPEG(4) (PEG(4) = tetraethyleneglycol) and 5-methoxymethyl derivatives were inactive. (C) 2013 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2013.04.011
• 作为产物：
  描述：

  2,5,8,11-四氧杂十三烷-13-基4-甲基苯磺酸酯 、 N-Boc-顺式-4-羟基-L-脯氨酸甲酯 在 sodium hydride 作用下， 以 四氢呋喃 、 mineral oil 为溶剂， 反应 0.25h， 以64%的产率得到methyl (2S,4S)-N-(tert-butyloxy)carbonyl-4-PEG₄yloxypyrrolidine-2-carboxylate
  参考文献：
  名称：

  Influence of 4- or 5-substituents on the pyrrolidine ring of 5-[1-(2-methoxymethylpyrrolidinyl)sulfonyl]isatin derivatives on their inhibitory activities towards caspases-3 and -7

  摘要：

  A series of new 4- or 5-substituted pyrrolidine derivatives of 5-[1-(2-methoxymethylpyrrolidinyl)sulfonyl]isatin bearing additional n-butyl or 4-fluorobutyl groups at the isatin nitrogen were prepared and their inhibitory activities have been tested against caspases-3 and -7, which are known to participate in the execution of the programmed cell death, called apoptosis. Several analogues fluorinated at the 4-position of the pyrrolidine ring were also synthesized since such inhibitors might be developed as F-18-radiotracers for molecular imaging of activated caspases in vivo by PET. Enantiomerically pure diastereomeric 4-fluoropyrrolidinyl derivatives inhibited the enzymes in the nanomolar scale, i.e.100-1000 times more efficient than the corresponding 4-methoxy analogues. The 4,4-difluorinated compound showed the best result with IC50 = 362 nM and 178 nM for the aforementioned caspases. In contrast, the 4-methoxy and 4-trifluoromethyl analogues exhibited less inhibition potencies for the enzymes in the mu M scale, whereas all 4-OPEG(4) (PEG(4) = tetraethyleneglycol) and 5-methoxymethyl derivatives were inactive. (C) 2013 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2013.04.011

文献信息

• Influence of 4- or 5-substituents on the pyrrolidine ring of 5-[1-(2-methoxymethylpyrrolidinyl)sulfonyl]isatin derivatives on their inhibitory activities towards caspases-3 and -7
  作者：Panupun Limpachayaporn、Burkhard Riemann、Klaus Kopka、Otmar Schober、Michael Schäfers、Günter Haufe

  DOI：10.1016/j.ejmech.2013.04.011

  日期：2013.6

  A series of new 4- or 5-substituted pyrrolidine derivatives of 5-[1-(2-methoxymethylpyrrolidinyl)sulfonyl]isatin bearing additional n-butyl or 4-fluorobutyl groups at the isatin nitrogen were prepared and their inhibitory activities have been tested against caspases-3 and -7, which are known to participate in the execution of the programmed cell death, called apoptosis. Several analogues fluorinated at the 4-position of the pyrrolidine ring were also synthesized since such inhibitors might be developed as F-18-radiotracers for molecular imaging of activated caspases in vivo by PET. Enantiomerically pure diastereomeric 4-fluoropyrrolidinyl derivatives inhibited the enzymes in the nanomolar scale, i.e.100-1000 times more efficient than the corresponding 4-methoxy analogues. The 4,4-difluorinated compound showed the best result with IC50 = 362 nM and 178 nM for the aforementioned caspases. In contrast, the 4-methoxy and 4-trifluoromethyl analogues exhibited less inhibition potencies for the enzymes in the mu M scale, whereas all 4-OPEG(4) (PEG(4) = tetraethyleneglycol) and 5-methoxymethyl derivatives were inactive. (C) 2013 Elsevier Masson SAS. All rights reserved.