methyl 2-cyano-3-(3,4-difluorophenyl)-2-propenoate | 176736-76-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: methyl 2-cyano-3-(3,4-difluorophenyl)-2-propenoate
• 英文别名: Methyl 2-cyano-3-(3,4-difluorophenyl)prop-2-enoate
• CAS: 176736-76-8
• 化学式: C₁₁H₇F₂NO₂
• 分子量: 223.179
• InChiKey: QPDFZQBKMSQWQT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.09
• 拓扑面积：
  50.1
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  methyl 2-cyano-3-(3,4-difluorophenyl)-2-propenoate 在 sodium hydroxide 作用下， 以 甲醇 、 苯 为溶剂， 反应 1.25h， 生成 3,3-bis(3,4-difluorophenyl)-2-carbamoylpropanoic acid
  参考文献：
  名称：

  Synthesis and histamine H2 agonistic activity of arpromidine analogues: replacement of the pheniramine-like moiety by non-heterocyclic groups

  摘要：

  Analogues of the potent histamine H-2 agonist arpromidine, characterized by non-heterocyclic groups (phenyl, cyclo-hexyl, alkyl) instead of the pheniramine-like portion, were prepared and tested for their H-2 agonistic and H-1 antagonistic activity in the isolated guinea pig right atrium and ileum, respectively. In the diphenylpropylguanidine series an increase in H-2 agonistic potency resulted from mono- or difluorination at one or both phenyl rings in the meta and/or para position (pD2 less-than-or-equal-to 7.75 vs pD2 = 7.15 for the unsubstituted parent compound). Compounds chlorinated at both phenyl rings were considerably less potent. Highest combined H-2 agonistic/H-1 antagonistic potency was found in the 4-fluorophenyl series. The arpromidine analogue with cyclohexyl and methyl group instead of phenyl and pyridine ring proved to be 30 times more potent than histamine in the atrium. The H-1 antagonistic potency in cyclohexyl compounds was lower than in the diaryl series. Thus, aromatic rings appear not to be required for high H-2 agonistic potency but are useful for combined H-2 agonistic/H-1 antagonistic activity.

  DOI：

  10.1016/0223-5234(92)90145-q
• 作为产物：
  描述：

  3,4-二氟苯甲醛 、 氰乙酸甲酯 在 溶剂黄146 、 β-丙氨酸 作用下， 以 甲苯 为溶剂， 生成 methyl 2-cyano-3-(3,4-difluorophenyl)-2-propenoate
  参考文献：
  名称：

  Synthesis and histamine H2 agonistic activity of arpromidine analogues: replacement of the pheniramine-like moiety by non-heterocyclic groups

  摘要：

  Analogues of the potent histamine H-2 agonist arpromidine, characterized by non-heterocyclic groups (phenyl, cyclo-hexyl, alkyl) instead of the pheniramine-like portion, were prepared and tested for their H-2 agonistic and H-1 antagonistic activity in the isolated guinea pig right atrium and ileum, respectively. In the diphenylpropylguanidine series an increase in H-2 agonistic potency resulted from mono- or difluorination at one or both phenyl rings in the meta and/or para position (pD2 less-than-or-equal-to 7.75 vs pD2 = 7.15 for the unsubstituted parent compound). Compounds chlorinated at both phenyl rings were considerably less potent. Highest combined H-2 agonistic/H-1 antagonistic potency was found in the 4-fluorophenyl series. The arpromidine analogue with cyclohexyl and methyl group instead of phenyl and pyridine ring proved to be 30 times more potent than histamine in the atrium. The H-1 antagonistic potency in cyclohexyl compounds was lower than in the diaryl series. Thus, aromatic rings appear not to be required for high H-2 agonistic potency but are useful for combined H-2 agonistic/H-1 antagonistic activity.

  DOI：

  10.1016/0223-5234(92)90145-q