methyl N-{[(9H-fluoren-9-yl)methoxy]carbonyl}-(S)-valyl-dimethylglycyl-(S)-N-methylvalinate | 445396-21-4

• 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 N-{[(9H-fluoren-9-yl)methoxy]carbonyl}-(S)-valyl-dimethylglycyl-(S)-N-methylvalinate
• 英文别名: Fmoc-Val-Aib-(Me)Val-OMe；Fmoc-Val-Aib-N(Me)Val-OMe；methyl (2S)-2-[[2-[[(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-methylbutanoyl]amino]-2-methylpropanoyl]-methylamino]-3-methylbutanoate
• CAS: 445396-21-4
• 化学式: C₃₁H₄₁N₃O₆
• 分子量: 551.683
• InChiKey: LYTDHVDRSLZPES-UIOOFZCWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.2
• 重原子数：
  40
• 可旋转键数：
  12
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.48
• 拓扑面积：
  114
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  methyl N-{[(9H-fluoren-9-yl)methoxy]carbonyl}-(S)-valyl-dimethylglycyl-(S)-N-methylvalinate 在 O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、 二乙胺 、 N,N-二异丙基乙胺 作用下， 以 二氯甲烷 、 乙腈 为溶剂， 反应 26.0h， 生成 methyl N-[(tert-butoxy)carbonyl]-(S)-alanyl-(S)-valyl-dimethylglycyl-(S)-methylvalinate
  参考文献：
  名称：

  Synthesis and Use of 2H-Azirin-3-amines as Dipeptide Synthons

  摘要：

  The synthesis of the new 2H-azirin-3-amines ('3-amino-2H-azirines') 11, 20, 28, and 33 as dipeptide synthons is described. The reactions of the starting amides with Lawesson reagent gave the corresponding thioamides, and consecutive treatment with COCl2, 1,4-diazabicyclo[2.2.2]octane (DABCO), and NaN3 led to the desired products. It is shown that these 2H-azirin-3-amines can conveniently be used as building blocks of the dipeptides Aib-(Me)Axx (Axx = alanine, valine), Aib-Homoproline, and Iva-Pro in the synthesis of several model peptides. However, some limitations apply for the synthesis of such 2H-azirin-3-amines. The starting material for the azirine synthesis, the corresponding thioamides, cannot generally be synthesized, and the 2H-azirin-3-amines could not be obtained in all cases from the thioamides prepared.

  DOI：

  10.1002/1522-2675(200203)85:3<885::aid-hlca885>3.0.co;2-z
• 作为产物：
  描述：

  N-甲基-L-缬氨酸 在 劳森试剂 、 氯化亚砜 、 sodium azide 、 三乙胺 、 N,N-二甲基甲酰胺 作用下， 以 四氢呋喃 、 二氯甲烷 、 甲苯 、 乙腈 为溶剂， 反应 71.33h， 生成 methyl N-{[(9H-fluoren-9-yl)methoxy]carbonyl}-(S)-valyl-dimethylglycyl-(S)-N-methylvalinate
  参考文献：
  名称：

  Synthesis and Use of 2H-Azirin-3-amines as Dipeptide Synthons

  摘要：

  The synthesis of the new 2H-azirin-3-amines ('3-amino-2H-azirines') 11, 20, 28, and 33 as dipeptide synthons is described. The reactions of the starting amides with Lawesson reagent gave the corresponding thioamides, and consecutive treatment with COCl2, 1,4-diazabicyclo[2.2.2]octane (DABCO), and NaN3 led to the desired products. It is shown that these 2H-azirin-3-amines can conveniently be used as building blocks of the dipeptides Aib-(Me)Axx (Axx = alanine, valine), Aib-Homoproline, and Iva-Pro in the synthesis of several model peptides. However, some limitations apply for the synthesis of such 2H-azirin-3-amines. The starting material for the azirine synthesis, the corresponding thioamides, cannot generally be synthesized, and the 2H-azirin-3-amines could not be obtained in all cases from the thioamides prepared.

  DOI：

  10.1002/1522-2675(200203)85:3<885::aid-hlca885>3.0.co;2-z