3-methyl-8-m-chlorobenzyloxy-5H-indeno[1,2-c]pyridazin-5-one | 1350800-67-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 3-methyl-8-m-chlorobenzyloxy-5H-indeno[1,2-c]pyridazin-5-one
• 英文别名: 8-[(3-Chlorophenyl)methoxy]-3-methylindeno[1,2-c]pyridazin-5-one
• CAS: 1350800-67-7
• 化学式: C₁₉H₁₃ClN₂O₂
• 分子量: 336.777
• InChiKey: BFAXXNJWSVCIKV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  24
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  52.1
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  3-methyl-8-hydroxy-5H-indeno[1,2-c]pyridazin-5-one 、 3-氯苄溴 在 silver(l) oxide 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 4.0h， 以15%的产率得到3-methyl-8-m-chlorobenzyloxy-5H-indeno[1,2-c]pyridazin-5-one
  参考文献：
  名称：

  Synthesis and inhibition study of monoamine oxidase, indoleamine 2,3-dioxygenase and tryptophan 2,3-dioxygenase by 3,8-substituted 5H-indeno[1,2-c]pyridazin-5-one derivatives

  摘要：

  Previous studies on 5H-indeno[1,2-c]pyridazin-5-one derivatives as inhibitors of MAO-B revealed that it was possible to increase the MAO-B inhibitory potency of 5H-indeno[1,2-c]pyridazin-5-ones by substituting the central heterocycle in the 3-position or C-8 with lipophilic groups which occupy the substrate cavity or the entrance of the binding site, respectively. Here, four new 5H-indeno[1,2-c]pyridazin-5-one derivatives containing lipophilic groups at both positions were synthesized and their inhibitory potency against human monoamine oxidase A and B were evaluated. Selectivity of these compounds against IDO and TDO, two enzymes sharing substrate similarity with MAO and involved in the serotonergic and kynurenine pathways was also studied. All compounds showed higher activity and selectivity against MAO-B, the most effective one being 3-methyl-8-meta-chlorobenzyloxy-5H-indeno [1,2-c]pyridazin-5-one (9a) which was shown to be a competitive inhibitor with a K-i value of 0.11 mu M. Replacing the methyl group in the 3-position with a meta-CF3-phenyl group (7a, 7b and 7c) abolished the inhibitory potency against MAO-B. Indeed, the substitution of the 5H-indeno[1,2-c]pyridazin-5-one core in the 3-position dramatically influences the MAO-inhibiting properties of these compounds. Molecular docking studies of 9a within MAO-B suggest that the 5H-indeno[1,2-c]pyridazin-5-one scaffold is well stabilized into the substrate cavity with the meta-chlorobenzyloxy side chain extending towards a rather hydrophobic pocket at the entrance cavity. (C) 2011 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2011.09.042

文献信息

• Synthesis and inhibition study of monoamine oxidase, indoleamine 2,3-dioxygenase and tryptophan 2,3-dioxygenase by 3,8-substituted 5H-indeno[1,2-c]pyridazin-5-one derivatives
  作者：J. Reniers、C. Meinguet、L. Moineaux、B. Masereel、S.P. Vincent、R. Frederick、J. Wouters

  DOI：10.1016/j.ejmech.2011.09.042

  日期：2011.12

  Previous studies on 5H-indeno[1,2-c]pyridazin-5-one derivatives as inhibitors of MAO-B revealed that it was possible to increase the MAO-B inhibitory potency of 5H-indeno[1,2-c]pyridazin-5-ones by substituting the central heterocycle in the 3-position or C-8 with lipophilic groups which occupy the substrate cavity or the entrance of the binding site, respectively. Here, four new 5H-indeno[1,2-c]pyridazin-5-one derivatives containing lipophilic groups at both positions were synthesized and their inhibitory potency against human monoamine oxidase A and B were evaluated. Selectivity of these compounds against IDO and TDO, two enzymes sharing substrate similarity with MAO and involved in the serotonergic and kynurenine pathways was also studied. All compounds showed higher activity and selectivity against MAO-B, the most effective one being 3-methyl-8-meta-chlorobenzyloxy-5H-indeno [1,2-c]pyridazin-5-one (9a) which was shown to be a competitive inhibitor with a K-i value of 0.11 mu M. Replacing the methyl group in the 3-position with a meta-CF3-phenyl group (7a, 7b and 7c) abolished the inhibitory potency against MAO-B. Indeed, the substitution of the 5H-indeno[1,2-c]pyridazin-5-one core in the 3-position dramatically influences the MAO-inhibiting properties of these compounds. Molecular docking studies of 9a within MAO-B suggest that the 5H-indeno[1,2-c]pyridazin-5-one scaffold is well stabilized into the substrate cavity with the meta-chlorobenzyloxy side chain extending towards a rather hydrophobic pocket at the entrance cavity. (C) 2011 Elsevier Masson SAS. All rights reserved.