2,4-dichloro-N-ethyl-1,8-naphthyridine-3-carboxamide | 1060775-09-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氮杂萘
• 英文名称: 2,4-dichloro-N-ethyl-1,8-naphthyridine-3-carboxamide
• CAS: 1060775-09-8
• 化学式: C₁₁H₉Cl₂N₃O
• 分子量: 270.118
• InChiKey: BHODTHNRJXBONE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  17
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  54.9
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2,4-dichloro-N-ethyl-1,8-naphthyridine-3-carboxamide 在 diphenyl ether-biphenyl eutectic 作用下， 以 乙醇 为溶剂， 反应 17.0h， 生成 N-ethyl-9-isopropyl-5-(isopropylamino)[1,2,4]triazolo[4,3-a][1,8]-naphthyridine-6-carboxamide
  参考文献：
  名称：

  1,8-Naphthyridines IX. Potent anti-inflammatory and/or analgesic activity of a new group of substituted 5-amino[1,2,4]triazolo[4,3-a][1,8]naphthyridine-6-carboxamides, of some their Mannich base derivatives and of one novel substituted 5-amino-10-oxo-10H-pyrimido[1,2-a][1,8]naphthyridine-6-carboxamide derivative

  摘要：

  A new group of 5-(alkylamino)-9-isopropyl[1,2,4]triazolo[4,3-a][1,8]naphthyridine derivatives bearing a CONHR group at the 6-position (1c-g), designed to obtain new effective analgesic and/or anti-inflammatory agents, were synthesized and tested along with three new 9-alkyl-5-(4-alkyl-1-piperazinyl)-N,N-diethyl [1,2,4]triazolo[4,3-a][1,8]naphthyridine-6-carboxamides (2b-d). Besides, a new class of analogues of compounds 1 and 2, bearing a Mannich base moiety at the 9-position (12a-d), as well as the novel N,N-diethyl-5-(isobutylamino)-8-methyl-10-oxo-10H-pyrimido[1,2-a][1,8]naphthyridine-6-carboxamide (15) were prepared and tested. Compounds 1c-g exhibited very interesting anti-inflammatory properties in rats, whereas compounds 2b-d and 15 proved to be endowed with prevalent analgesic activity frequently associated with sedative effects in mice. On the contrary, the Mannich bases 12a-d resulted inactive. The most effective (80% inhibition of oedema) and potent (threshold dose 1.6 mg kg(-1) with 31% inhibition of oedema) anti-inflammatory compound 1d did not show gastrolesive effects following 100 mg kg(-1) oral administration in rats. (C) 2014 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2014.08.069
• 作为产物：
  描述：

  N-ethyl-1,2-dihydro-4-hydroxy-2-oxo-1,8-naphthyridine-3-carboxamide 在 三氯氧磷 作用下， 反应 1.0h， 以62%的产率得到2,4-dichloro-N-ethyl-1,8-naphthyridine-3-carboxamide
  参考文献：
  名称：

  1,8-Naphthyridines VII. New substituted 5-amino[1,2,4]triazolo[4,3-a][1,8]naphthyridine-6-carboxamides and their isosteric analogues, exhibiting notable anti-inflammatory and/or analgesic activities, but no acute gastrolesivity

  摘要：

  The [1,2,4]triazolo[4,3-a][1,8]naphthyridine-6-carboxamide derivatives 5-amino (2) or 5-alkoxy (3) substituted and the 5-amino[1,2,4] triazolo[4,3-a]quinoline-4-carboxamide derivatives (4), designed to obtain new effective analgesic and/or anti-inflammatory agents were synthesized. Ten compounds 2 and 4 showed an interesting analgesic activity: the most potent ones are 2j (36% inhibition, P < 0.05) and 4b (77% inhibition, P < 0.01) at 6.25 and 25 mg kg(-1) doses, respectively. Compounds 2i-I and 4c showed notable anti-inflammatory properties: the most potent ones are 2i (68% inhibition, P < 0.01) and 21 (42% inhibition, P < 0.05) at 12.5 and 6.25 mg kg(-1) doses, respectively. The replacement in compounds 2 of the N-substituted 5-amino substituents with similar alkoxy groups usually afforded less active compounds 3. (c) 2007 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2007.10.010

文献信息

• 1,8-Naphthyridines IX. Potent anti-inflammatory and/or analgesic activity of a new group of substituted 5-amino[1,2,4]triazolo[4,3-a][1,8]naphthyridine-6-carboxamides, of some their Mannich base derivatives and of one novel substituted 5-amino-10-oxo-10H-pyrimido[1,2-a][1,8]naphthyridine-6-carboxamide derivative
  作者：Mario Di Braccio、Giancarlo Grossi、Silvana Alfei、Vigilio Ballabeni、Massimiliano Tognolini、Lisa Flammini、Carmine Giorgio、Simona Bertoni、Elisabetta Barocelli

  DOI：10.1016/j.ejmech.2014.08.069

  日期：2014.10

  A new group of 5-(alkylamino)-9-isopropyl[1,2,4]triazolo[4,3-a][1,8]naphthyridine derivatives bearing a CONHR group at the 6-position (1c-g), designed to obtain new effective analgesic and/or anti-inflammatory agents, were synthesized and tested along with three new 9-alkyl-5-(4-alkyl-1-piperazinyl)-N,N-diethyl [1,2,4]triazolo[4,3-a][1,8]naphthyridine-6-carboxamides (2b-d). Besides, a new class of analogues of compounds 1 and 2, bearing a Mannich base moiety at the 9-position (12a-d), as well as the novel N,N-diethyl-5-(isobutylamino)-8-methyl-10-oxo-10H-pyrimido[1,2-a][1,8]naphthyridine-6-carboxamide (15) were prepared and tested. Compounds 1c-g exhibited very interesting anti-inflammatory properties in rats, whereas compounds 2b-d and 15 proved to be endowed with prevalent analgesic activity frequently associated with sedative effects in mice. On the contrary, the Mannich bases 12a-d resulted inactive. The most effective (80% inhibition of oedema) and potent (threshold dose 1.6 mg kg(-1) with 31% inhibition of oedema) anti-inflammatory compound 1d did not show gastrolesive effects following 100 mg kg(-1) oral administration in rats. (C) 2014 Elsevier Masson SAS. All rights reserved.
• 1,8-Naphthyridines VII. New substituted 5-amino[1,2,4]triazolo[4,3-a][1,8]naphthyridine-6-carboxamides and their isosteric analogues, exhibiting notable anti-inflammatory and/or analgesic activities, but no acute gastrolesivity
  作者：Giorgio Roma、Giancarlo Grossi、Mario Di Braccio、Daniela Piras、Vigilio Ballabeni、Massimiliano Tognolini、Simona Bertoni、Elisabetta Barocelli

  DOI：10.1016/j.ejmech.2007.10.010

  日期：2008.8

  The [1,2,4]triazolo[4,3-a][1,8]naphthyridine-6-carboxamide derivatives 5-amino (2) or 5-alkoxy (3) substituted and the 5-amino[1,2,4] triazolo[4,3-a]quinoline-4-carboxamide derivatives (4), designed to obtain new effective analgesic and/or anti-inflammatory agents were synthesized. Ten compounds 2 and 4 showed an interesting analgesic activity: the most potent ones are 2j (36% inhibition, P < 0.05) and 4b (77% inhibition, P < 0.01) at 6.25 and 25 mg kg(-1) doses, respectively. Compounds 2i-I and 4c showed notable anti-inflammatory properties: the most potent ones are 2i (68% inhibition, P < 0.01) and 21 (42% inhibition, P < 0.05) at 12.5 and 6.25 mg kg(-1) doses, respectively. The replacement in compounds 2 of the N-substituted 5-amino substituents with similar alkoxy groups usually afforded less active compounds 3. (c) 2007 Elsevier Masson SAS. All rights reserved.