2-氨基-5-(氰基甲基)-1H-咪唑-4-羧酸甲酯 | 103438-50-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 中文名称: 2-氨基-5-(氰基甲基)-1H-咪唑-4-羧酸甲酯
• 英文名称: methyl 2-amino-5-(cyanomethyl)-1H-imidazole-4-carboxylate
• CAS: 103438-50-2
• 化学式: C₇H₈N₄O₂
• 分子量: 180.166
• InChiKey: LFWJUAXQJZHSNB-UHFFFAOYSA-N

物化性质

• 沸点：
  503.9±60.0 °C(Predicted)
• 密度：
  1.414±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -0.4
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  105
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  1,3-丙酮二羧酸二甲酯 在 氨 、 sodium methylate 、 sodium hydride 、 对甲苯磺酸 、 三氯氧磷 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 100.5h， 生成 2-氨基-5-(氰基甲基)-1H-咪唑-4-羧酸甲酯
  参考文献：
  名称：

  Synthesis of 8-amino-3-deazaguanine via imidazole precursors. Antitumor activity and inhibition of purine nucleoside phosphorylase

  摘要：

  8-Amino-3-deazaguanine (15), an analogue of both 3-deazaguanine (1) and 8-aminoguanine (6), an antitumor agent and a purine nucleoside phosphorylase (PNP) inhibitor, respectively, was synthesized from the ammonolysis of an imidazole precursor, methyl 2-(benzoylamino)-5-(cyanomethyl)-1H-imidazole-4-carboxylate (13). The requisite imidazole, methyl 2-(benzoylamino)-4-(methoxycarbonyl)-1H-imidazole-5-acetate (11), was prepared from the monoheterocyclic rearrangement of dimethyl 3-[(5-phenyl-1,2,4-oxadiazol-3-yl)amino]-2-pentenedioate (10) by NaH/DMF. Ammonolysis and subsequent dehydration of 11 provided the penultimate imidazole intermediate 13. Its deprotected (NaOMe/100 degrees C) product, methyl 2-amino-5-(cyanomethyl)-1H-imidazole-4-carboxylate (14), was also converted to 15. 8-Amino-3-deazaguanine, as its methanesulfonic acid (mesylate 7), exhibited an inhibition constant (IC50) of 9.9 microM against isolated mammalian PNP. It was a very weak inhibitor of T and B cell growth and did not enhance 2'-deoxyguanosine toxicity in the same cells. 8-Amino-3-deazaguanine mesylate was not significantly active in L1210 cells in vitro or L1210 leukemic mice. Thus, the amino group introduced in the 8-position of 3-deazaguanine enhances its PNP activity but diminishes its antitumor activity.

  DOI：

  10.1021/jm00160a040

文献信息

• Synthesis of 8-amino-3-deazaguanine via imidazole precursors. Antitumor activity and inhibition of purine nucleoside phosphorylase
  作者：David A. Berry、Richard B. Gilbertsen、P. Dan Cook

  DOI：10.1021/jm00160a040

  日期：1986.10

  8-Amino-3-deazaguanine (15), an analogue of both 3-deazaguanine (1) and 8-aminoguanine (6), an antitumor agent and a purine nucleoside phosphorylase (PNP) inhibitor, respectively, was synthesized from the ammonolysis of an imidazole precursor, methyl 2-(benzoylamino)-5-(cyanomethyl)-1H-imidazole-4-carboxylate (13). The requisite imidazole, methyl 2-(benzoylamino)-4-(methoxycarbonyl)-1H-imidazole-5-acetate (11), was prepared from the monoheterocyclic rearrangement of dimethyl 3-[(5-phenyl-1,2,4-oxadiazol-3-yl)amino]-2-pentenedioate (10) by NaH/DMF. Ammonolysis and subsequent dehydration of 11 provided the penultimate imidazole intermediate 13. Its deprotected (NaOMe/100 degrees C) product, methyl 2-amino-5-(cyanomethyl)-1H-imidazole-4-carboxylate (14), was also converted to 15. 8-Amino-3-deazaguanine, as its methanesulfonic acid (mesylate 7), exhibited an inhibition constant (IC50) of 9.9 microM against isolated mammalian PNP. It was a very weak inhibitor of T and B cell growth and did not enhance 2'-deoxyguanosine toxicity in the same cells. 8-Amino-3-deazaguanine mesylate was not significantly active in L1210 cells in vitro or L1210 leukemic mice. Thus, the amino group introduced in the 8-position of 3-deazaguanine enhances its PNP activity but diminishes its antitumor activity.