methyl (2S)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-(4-pyren-1-yloxyphenyl)propanoate | 1423388-23-1

• 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)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-(4-pyren-1-yloxyphenyl)propanoate
• CAS: 1423388-23-1
• 化学式: C₃₁H₂₉NO₅
• 分子量: 495.575
• InChiKey: DQIOVOJCFCJHEH-VWLOTQADSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.5
• 重原子数：
  37
• 可旋转键数：
  9
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  73.9
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  1-溴芘 、 Boc-L-酪氨酸甲酯 在 copper(l) iodide 、 caesium carbonate 、 N,N'-二甲基乙二胺 作用下， 以 甲苯 为溶剂， 反应 24.0h， 以35%的产率得到methyl (2S)-2-[(2-methylpropan-2-yl)oxycarbonylamino]-3-(4-pyren-1-yloxyphenyl)propanoate
  参考文献：
  名称：

  Synthesis of new β-amidodehydroaminobutyric acid derivatives and of new tyrosine derivatives using copper catalyzed C–N and C–O coupling reactions

  摘要：

  Several beta-amidodehydroaminobutyric acid derivatives were prepared from N,C-diprotected beta-bromodehydroaminobutyric acids and amides by a copper catalyzed C-N coupling reaction. The best reaction conditions include the use of a catalytic amount of CuI, N,N'-dimethylethylenediamine as ligand and K2CO3 as base in toluene at 110 A degrees C. The stereochemistry of the products was determined using NOE difference experiments and the results obtained are in agreement with an E-stereochemistry. Thus, the stereochemistry is maintained in the case of the E-isomers of beta-bromodehydroaminobutyric acid derivatives, but when the Z-isomers were used as substrates the reaction proceeds with inversion of configuration. The use of beta-bromodehydrodipeptides as substrates was also tested. It was found that the reaction outcome depend on the stereochemistry of the beta-bromodehydrodipeptide and on the nature of the first amino acid residue. The products isolated were the beta-amidodehydrodipeptide derivatives and/or the corresponding dihydropyrazines. The same catalytic system (CuI/N,N'-dimethylethylene diamine) was used in the C-O coupling reactions between a tyrosine derivative and aryl bromides. The new O-aryltyrosine derivatives were isolated in moderate to good yields. The photophysical properties of two of these compounds were studied in four solvents of different polarity. The results show that these compounds after deprotection can be used as fluorescence markers.

  DOI：

  10.1007/s00726-012-1337-4

文献信息

• Synthesis of new β-amidodehydroaminobutyric acid derivatives and of new tyrosine derivatives using copper catalyzed C–N and C–O coupling reactions
  作者：G. Pereira、H. Vilaça、P. M. T. Ferreira

  DOI：10.1007/s00726-012-1337-4

  日期：2013.2

  Several beta-amidodehydroaminobutyric acid derivatives were prepared from N,C-diprotected beta-bromodehydroaminobutyric acids and amides by a copper catalyzed C-N coupling reaction. The best reaction conditions include the use of a catalytic amount of CuI, N,N'-dimethylethylenediamine as ligand and K2CO3 as base in toluene at 110 A degrees C. The stereochemistry of the products was determined using NOE difference experiments and the results obtained are in agreement with an E-stereochemistry. Thus, the stereochemistry is maintained in the case of the E-isomers of beta-bromodehydroaminobutyric acid derivatives, but when the Z-isomers were used as substrates the reaction proceeds with inversion of configuration. The use of beta-bromodehydrodipeptides as substrates was also tested. It was found that the reaction outcome depend on the stereochemistry of the beta-bromodehydrodipeptide and on the nature of the first amino acid residue. The products isolated were the beta-amidodehydrodipeptide derivatives and/or the corresponding dihydropyrazines. The same catalytic system (CuI/N,N'-dimethylethylene diamine) was used in the C-O coupling reactions between a tyrosine derivative and aryl bromides. The new O-aryltyrosine derivatives were isolated in moderate to good yields. The photophysical properties of two of these compounds were studied in four solvents of different polarity. The results show that these compounds after deprotection can be used as fluorescence markers.