ethyl 2-cyano-5-(dimethylamino)-3-phenylhexa-2,4-dienoate | 713518-43-5

• 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: ethyl 2-cyano-5-(dimethylamino)-3-phenylhexa-2,4-dienoate
• CAS: 713518-43-5
• 化学式: C₁₇H₂₀N₂O₂
• 分子量: 284.358
• InChiKey: QPYIKESBFLJYCL-YWYHVDRESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.99
• 重原子数：
  21.0
• 可旋转键数：
  5.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  53.33
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  ethyl 2-cyano-5-(dimethylamino)-3-phenylhexa-2,4-dienoate 在 盐酸 、 sodium hydroxide 、 氯化亚砜 、 三乙胺 、 N,N-二甲基甲酰胺 作用下， 以 四氢呋喃 、 乙醇 、 乙酸乙酯 为溶剂， 生成 N-[3,5-Bis(trifluoromethyl)benzyl]-2-chloro-N-(2-hydroxyethyl)-6-methyl-4-phenyl-3-pyridinecarboxamide
  参考文献：
  名称：

  Amide-based atropisomers in tachykinin NK1-receptor antagonists: synthesis and antagonistic activity of axially chiral N-benzylcarboxamide derivatives of 2,3,4,5-tetrahydro-6H-pyrido[2,3-b][1,5]oxazocin-6-one

  摘要：

  A series of novel N-benzylcarboxamide derivatives of bicyclic compounds, 3,4-dihydropyrido[3,2-f][1,4]oxazepin-5(2H)-one and 2,3,4,5-tetrahydro-6H-pyrido[2,3-b][1,5]oxazocin-6-one, were synthesized by cyclization of N-benzyl-2-chloro-N-(2-hydroxyethyl)-and -(3-hydroxypropyl)-nicotinamides, respectively. Atropisomerism was observed in 5-[3,5-bis(trifluoromethyl)benzyl]-7-phenyl-2,3,4,5-tetrahydro-6H-pyrido[2,3-b][1,5]oxazocin-6-ones due to steric hindrance of the carboxamide moiety and restriction of its rotation. Cyclization of N-[3,5-bis(trifluoromethyl)benzyl]-2-chloro-N-[(2S)-3-hydroxy-2-methylpropyl]-5-methyl-4-phenylnicotinamide gave (3S)5-[3,5-bis(trifluoromethyl)benzyl]-3,8-dimethyl-7-phenyl-2,3,4,5-tetrahydro-6H-pyrido[2,3b][1,5]oxazocin-6-one, which exists predominantly in the thermodynamically stable aR-conformer in CDCl3. This compound showed excellent NK1-antagonistic activity with IC50 value (in vitro inhibition of [I-125]-Bolton-Hunter-substance P binding in human IM-9 cells) of 0.47 nM, which is ca. 200-fold more potent than that of its enantiomer, indicating that the atropisomer chirality affects NK1-receptor recognition. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.01.097
• 作为产物：
  描述：

  1,1-二甲氧基-N,N-二甲基乙胺 、 (Z)-2-cyano-3-phenylbut-2-enoic acid ethyl ester 以 甲醇 为溶剂， 反应 2.0h， 以63%的产率得到ethyl 2-cyano-5-(dimethylamino)-3-phenylhexa-2,4-dienoate
  参考文献：
  名称：

  Amide-based atropisomers in tachykinin NK1-receptor antagonists: synthesis and antagonistic activity of axially chiral N-benzylcarboxamide derivatives of 2,3,4,5-tetrahydro-6H-pyrido[2,3-b][1,5]oxazocin-6-one

  摘要：

  A series of novel N-benzylcarboxamide derivatives of bicyclic compounds, 3,4-dihydropyrido[3,2-f][1,4]oxazepin-5(2H)-one and 2,3,4,5-tetrahydro-6H-pyrido[2,3-b][1,5]oxazocin-6-one, were synthesized by cyclization of N-benzyl-2-chloro-N-(2-hydroxyethyl)-and -(3-hydroxypropyl)-nicotinamides, respectively. Atropisomerism was observed in 5-[3,5-bis(trifluoromethyl)benzyl]-7-phenyl-2,3,4,5-tetrahydro-6H-pyrido[2,3-b][1,5]oxazocin-6-ones due to steric hindrance of the carboxamide moiety and restriction of its rotation. Cyclization of N-[3,5-bis(trifluoromethyl)benzyl]-2-chloro-N-[(2S)-3-hydroxy-2-methylpropyl]-5-methyl-4-phenylnicotinamide gave (3S)5-[3,5-bis(trifluoromethyl)benzyl]-3,8-dimethyl-7-phenyl-2,3,4,5-tetrahydro-6H-pyrido[2,3b][1,5]oxazocin-6-one, which exists predominantly in the thermodynamically stable aR-conformer in CDCl3. This compound showed excellent NK1-antagonistic activity with IC50 value (in vitro inhibition of [I-125]-Bolton-Hunter-substance P binding in human IM-9 cells) of 0.47 nM, which is ca. 200-fold more potent than that of its enantiomer, indicating that the atropisomer chirality affects NK1-receptor recognition. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.01.097