2,3,4,7,8,9-hexamethoxy-11H-indeno[1,2-c]isoquinoline hydrochloride

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 异喹啉及其衍生物
• 英文名称: 2,3,4,7,8,9-hexamethoxy-11H-indeno[1,2-c]isoquinoline hydrochloride
• 英文别名: 2,3,4,7,8,9-hexamethoxy-11H-indeno[1,2-c]isoquinolin-6-ium;chloride
• 化学式: C₂₂H₂₃NO₆*ClH
• 分子量: 433.889
• InChiKey: BSABFUJVIMYNQS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.28
• 重原子数：
  30
• 可旋转键数：
  6
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  68.3
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  2,3,4-三甲氧基苯甲醛 在 盐酸 、 sodium tetrahydroborate 作用下， 以 乙醇 、 苯 为溶剂， 反应 7.0h， 生成 2,3,4,7,8,9-hexamethoxy-11H-indeno[1,2-c]isoquinoline hydrochloride
  参考文献：
  名称：

  Synthesis and Mechanism of Action Studies of a Series of Norindenoisoquinoline Topoisomerase I Poisons Reveal an Inhibitor with a Flipped Orientation in the Ternary DNA−Enzyme−Inhibitor Complex As Determined by X-ray Crystallographic Analysis

  摘要：

  Several norindenoisoquinolines substituted with methoxy or methylenedioxy groups have been prepared and their anticancer properties evaluated in cancer cell cultures and in topoisomerase I inhibition assays. 2,3-Dimethoxy-8,9-methylenedioxy-11H-indeno[1,2-c]isoquinoline hydrochloride (14) is a strong topoisomerase I inhibitor and also displays very high cytotoxicity in the NCI cancer cell culture screen (mean graph midpoint of 50 nM). The X-ray crystal structure of norindenoisoquinoline 14 in complex with topoisomerase I and DNA has been solved, providing insight into the structure-activity relationships within this class of new anticancer agents. The number and position of the norindenoisoquinoline substituents have a significant influence on biological activity and demonstrate that substitution on the nitrogen atom is not an absolute requirement for the antitumor effect of the indenoisoquinolines. Removal of the 11-keto group from the lead compound 1 and replacement of the N-alkyllactam with an unsubstituted pyridine ring causes the indenoisoquinoline ring system to flip over in the DNA-enzyme-inhibitor ternary complex. This allows the nitrogen atom to assume the hydrogen bond acceptor role of the 11-keto group, resulting in hydrogen bonding to Arg364.

  DOI：

  10.1021/jm050076b

文献信息

• Synthesis and Mechanism of Action Studies of a Series of Norindenoisoquinoline Topoisomerase I Poisons Reveal an Inhibitor with a Flipped Orientation in the Ternary DNA−Enzyme−Inhibitor Complex As Determined by X-ray Crystallographic Analysis
  作者：Alexandra Ioanoviciu、Smitha Antony、Yves Pommier、Bart L. Staker、Lance Stewart、Mark Cushman

  DOI：10.1021/jm050076b

  日期：2005.7.1

  Several norindenoisoquinolines substituted with methoxy or methylenedioxy groups have been prepared and their anticancer properties evaluated in cancer cell cultures and in topoisomerase I inhibition assays. 2,3-Dimethoxy-8,9-methylenedioxy-11H-indeno[1,2-c]isoquinoline hydrochloride (14) is a strong topoisomerase I inhibitor and also displays very high cytotoxicity in the NCI cancer cell culture screen (mean graph midpoint of 50 nM). The X-ray crystal structure of norindenoisoquinoline 14 in complex with topoisomerase I and DNA has been solved, providing insight into the structure-activity relationships within this class of new anticancer agents. The number and position of the norindenoisoquinoline substituents have a significant influence on biological activity and demonstrate that substitution on the nitrogen atom is not an absolute requirement for the antitumor effect of the indenoisoquinolines. Removal of the 11-keto group from the lead compound 1 and replacement of the N-alkyllactam with an unsubstituted pyridine ring causes the indenoisoquinoline ring system to flip over in the DNA-enzyme-inhibitor ternary complex. This allows the nitrogen atom to assume the hydrogen bond acceptor role of the 11-keto group, resulting in hydrogen bonding to Arg364.