5-ethyl-4-oxo-4,5-dihydro-pyrrolo[1,2-a]quinoxaline-2-carboxylic acid | 69015-34-5

• 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: 5-ethyl-4-oxo-4,5-dihydro-pyrrolo[1,2-a]quinoxaline-2-carboxylic acid
• 英文别名: 5-ethyl-4,5-dihydro-4-oxo-pyrrolo[1,2-a]quinoxaline-2-carboxylic acid；4,5-Dihydro-5-ethyl-4-oxo-pyrrolo-[1,2-a]-quinoxaline-2-carboxylic acid；5-ethyl-4-oxopyrrolo[1,2-a]quinoxaline-2-carboxylic acid
• CAS: 69015-34-5
• 化学式: C₁₄H₁₂N₂O₃
• 分子量: 256.261
• InChiKey: OMVAEDBIYBATAL-UHFFFAOYSA-N

物化性质

• 熔点：
  314-316 °C(Solv: ethanol (64-17-5); water (7732-18-5))
• 沸点：
  524.3±50.0 °C(Predicted)
• 密度：
  1.38±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  19
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  62.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  5-氨基四氮唑 、 5-ethyl-4-oxo-4,5-dihydro-pyrrolo[1,2-a]quinoxaline-2-carboxylic acid 在 N,N'-羰基二咪唑 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以95%的产率得到5-ethyl-4,5-dihydro-4-oxo-N-(1H-tetrazol-5-yl)pyrrolo[1,2-a]quinoxaline-2-carboxamide
  参考文献：
  名称：

  Synthesis and oral antiallergic activity of carboxylic acids derived from imidazo[2,1-c][1,4]benzoxazines, imidazo[1,2-a]quinolines, imidazo[1,2-a]quinoxalines, imidazo[1,2-a]quinoxalinones, pyrrolo[1,2-a]quinoxalinones, pyrrolo[2,3-a]quinoxalinones, and imidazo[2,1-b]benzothiazoles

  摘要：

  4H-Imidazo[2,1-c][1,4]benzoxazine-2-carboxylic acid (3) was found to possess potent activity in the IgE-induced rat passive cutaneous anaphylaxis model which may be predictive of clinical antiallergic activity. Compared to disodium cromoglycate (DSCG, 1), 3 was less active following iv administration but unlike DSCG showed very significant oral activity. To explore the structural requirements for this activity, a range of tricyclic compounds was prepared and their activities were measured. Individual 2-carboxylic acids derived from imidazo[1,2-a]quinolines, imidazo[1,2-a]quinoxalines, imidazo[1,2-a]quinoxalinones, pyrrolo[1,2-a]quinoxalinones, pyrrolo[2,3-a]quinoxalinones, and imidazo[2,1-b]benzothiazoles showed iv activities up to 10(3) times as potent as DSCG and many of them showed significant oral activity. From these, imidazo[1,2-a]quinoxaline-2-carboxylic acid 114 has been chosen for further development.

  DOI：

  10.1021/jm00401a009
• 作为产物：
  描述：

  1-乙基苯并咪唑 在 sodium hydroxide 、 三乙胺 作用下， 以 乙醚 、 乙醇 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 144.0h， 生成 5-ethyl-4-oxo-4,5-dihydro-pyrrolo[1,2-a]quinoxaline-2-carboxylic acid
  参考文献：
  名称：

  Synthesis and oral antiallergic activity of carboxylic acids derived from imidazo[2,1-c][1,4]benzoxazines, imidazo[1,2-a]quinolines, imidazo[1,2-a]quinoxalines, imidazo[1,2-a]quinoxalinones, pyrrolo[1,2-a]quinoxalinones, pyrrolo[2,3-a]quinoxalinones, and imidazo[2,1-b]benzothiazoles

  摘要：

  4H-Imidazo[2,1-c][1,4]benzoxazine-2-carboxylic acid (3) was found to possess potent activity in the IgE-induced rat passive cutaneous anaphylaxis model which may be predictive of clinical antiallergic activity. Compared to disodium cromoglycate (DSCG, 1), 3 was less active following iv administration but unlike DSCG showed very significant oral activity. To explore the structural requirements for this activity, a range of tricyclic compounds was prepared and their activities were measured. Individual 2-carboxylic acids derived from imidazo[1,2-a]quinolines, imidazo[1,2-a]quinoxalines, imidazo[1,2-a]quinoxalinones, pyrrolo[1,2-a]quinoxalinones, pyrrolo[2,3-a]quinoxalinones, and imidazo[2,1-b]benzothiazoles showed iv activities up to 10(3) times as potent as DSCG and many of them showed significant oral activity. From these, imidazo[1,2-a]quinoxaline-2-carboxylic acid 114 has been chosen for further development.

  DOI：

  10.1021/jm00401a009

文献信息

• Pyrroloquinoxalines
  申请人：Roussel Uclaf

  公开号：US04151280A1

  公开（公告）日：1979-04-24

  Novel pyrroloquinoxalines of the formula ##STR1## wherein X and Y are individually selected from the group consisting of hydrogen, halogen, alkyl and alkoxy of 1 to 5 carbon atoms and --NO.sub.2, Z is selected from the group consisting of alkyl of 1 to 8 carbon atoms, cycloalkyl of 3 to 8 carbon atoms, alkenyl of 2 to 6 carbon atoms and phenyl and R is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, ##STR2## and non-toxic, pharmaceutically acceptable cations, n is an integer from 1 to 6 and R.sub.1 and R.sub.2 are individually alkyl of 1 to 5 carbon atoms and the non-toxic, pharmaceutically acceptable acid addition salts thereof having antiallergic activity and to a novel process for their preparation.

  该专利描述了一种新型吡咯喹喔啉类化合物，化学结构如下：其中X和Y分别选自氢、卤素、1至5个碳原子的烷基和烷氧基以及--NO.sub.2的组合，Z选自1至8个碳原子的烷基、3至8个碳原子的环烷基、2至6个碳原子的烯基和苯基，R选自氢、1至5个碳原子的烷基、以及非毒性、药学上可接受的阳离子，n是1至6的整数，R.sub.1和R.sub.2分别为1至5个碳原子的烷基，以及具有抗过敏活性的非毒性、药学上可接受的酸盐，以及其制备的新方法。
• Substituted imidazo 1,2-a-quinoxaline-4-(5H)ones, their compositions and
  申请人：Roussel Uclaf

  公开号：US04474784A1

  公开（公告）日：1984-10-02

  Novel compounds of the formula ##STR1## wherein A is selected from the group consisting of nitrogen and .dbd.CH--, G is selected from the group consisting of --0--, ##STR2## Z is selected from the group consisting of hydrogen and alkyl of 1 to 5 carbon atoms or taken with Y forms a carbon-nitrogen or carbon-carbon bond, Z' is selected from the group consisting of hydrogen and halogen, Y is hydrogen, or taken with Z is a carbon-nitrogen or carbon-carbon bond or taken with X is .dbd.0 and X is hydrogen or taken with Y is .dbd.0, R is selected from the group consisting of hydroxymethyl, formyl, tetrazol-5-yl, N-(tetrazol-5-yl) carbamoyl, aminomethyl and carbamoyl, R.sub.1 is selected from the group consisting of hydrogen, halogen and alkoxy of 1 to 5 carbon atoms and its non-toxic, pharmaceutically acceptable acid addition salts having anti-allergic activity and their preparation.

  该文描述的是一种新型化合物，化学式为##STR1## 其中A可选自氮和.dbd.CH--，G可选自--0--，##STR2##，Z可选自氢和1至5个碳原子的烷基，或与Y形成碳氮或碳碳键，Z'可选自氢和卤素，Y为氢，或与Z形成碳氮或碳碳键，或与X形成.dbd.0，X为氢，或与Y形成.dbd.0，R可选自羟甲基、甲酰基、四唑-5-基、N-(四唑-5-基)氨基甲酰基、氨甲基和氨基甲酰基，R.sub.1可选自氢、卤素和1至5个碳原子的烷氧基，以及其无毒、药学上可接受的酸盐，具有抗过敏活性，并提供了其制备方法。
• Imidazoquinoxalines and pyrroloquinoxalines
  申请人：Roussel Uclaf

  公开号：US04333934A1

  公开（公告）日：1982-06-08

  Novel compounds of the formula ##STR1## wherein A is selected from the group consisting of nitrogen and .dbd.CH--, G is selected from the group consisting of ##STR2## Z is selected from the group consisting of hydrogen and alkyl of 1 to 5 carbon atoms or taken with Y forms a carbon-nitrogen or carbon-carbon bond, Z' is selected from the group consisting of hydrogen and halogen, Y is hydrogen, or taken with Z is a carbon-nitrogen or carbon-carbon bond or taken with X is .dbd.O and X is hydrogen or taken with Y is .dbd.O, R is selected from the group consisting of hydroxymethyl, formyl, tetrazol-5-yl, N-(tetrazol-5-yl) carbamoyl, aminomethyl and carbamoyl, R.sub.1 is selected from the group consisting of hydrogen, halogen and alkoxy of 1 to 5 carbon atoms and its non-toxic, pharmaceutically acceptable acid addition salts having antiallergic activity and their preparation.

  化合物的新颖结构式为##STR1## 其中A选自氮和.dbd.CH--的群组，G选自##STR2##的群组，Z选自1到5个碳原子的氢和烷基，或与Y一起形成碳氮或碳碳键，Z'选自氢和卤素的群组，Y为氢，或与Z一起形成碳氮或碳碳键，或与X一起为.dbd.O，X为氢，或与Y一起为.dbd.O，R选自羟甲基、甲酰基、四唑-5-基、N-(四唑-5-基)氨甲酰基、氨甲基和氨基甲酰基的群组，R.sub.1选自1到5个碳原子的卤素和烷氧基的群组，以及其无毒、药学上可接受的酸盐，具有抗过敏活性，并且可以制备这些化合物。
• AGER, IAN R.;BARNES, ALAN C.;DANSWAN, GEOFFREY W.;HAIRSINE, PETER W.;KAY,+, J. MED. CHEM., 31,(1988) N 6, 1098-1115
  作者：AGER, IAN R.、BARNES, ALAN C.、DANSWAN, GEOFFREY W.、HAIRSINE, PETER W.、KAY,+

  DOI：——

  日期：——
• US4151280A
  申请人：——

  公开号：US4151280A

  公开（公告）日：1979-04-24