2,8,9-trimethoxyphenanthridine | 1421005-42-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 喹啉及其衍生物
• 英文名称: 2,8,9-trimethoxyphenanthridine
• 英文别名: 2,8,9-Trimethoxyphenanthridine
• CAS: 1421005-42-6
• 化学式: C₁₆H₁₅NO₃
• 分子量: 269.3
• InChiKey: YAMJYOKBCDFCKM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  20
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  40.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2,8,9-trimethoxyphenanthridine 在 sodium chloride 作用下， 以 5,5-dimethyl-1,3-cyclohexadiene 、 水 、 硝基苯 为溶剂， 反应 1.0h， 生成 2,8,9-trimethoxy-5-methylphenanthridinium chloride
  参考文献：
  名称：

  Synthesis, topoisomerase-targeting activity and growth inhibition of lycobetaine analogs

  摘要：

  The plant alkaloid lycobetaine has potent topoisomerase-targeting properties and shows anticancer activity. Based on these findings, several lycobetaine analogs were synthesized mainly differing in their substituents at 2, 8 and 9 position and their biological activities were evaluated. The topoisomerase-targeting properties and cytotoxicity of these structural analogs were assessed in the human gastric carcinoma cell line GXF251L. Performing a plasmid relaxation assay, an increased inhibition of topoisomerase I was found with N-methylphenanthridinium chlorides bearing a 8,9-methylenedioxy moiety or a methoxy group in 2-position. Furthermore, quaternized phenanthridinium derivatives bearing either a 2-methoxy or a 8,9-methylenedioxy moiety in conjunction with a 2-hydroxy or 2-methoxy group display potent topoisomerase II inhibition as shown by decatenation of kinetoplast DNA. In general, the N-methylphenanthridinium chlorides possess more potency in inhibiting topoisomerase I than topoisomerase II. All quaternized derivatives also exhibited potent inhibition of tumor cell growth in the low micromolar concentration range. Hence, N-methylphenanthridinium compounds were found to represent a promising class of compounds, potently inhibiting both, topoisomerases I and II, and may be further developed into clinically useful topoisomerase inhibitors. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2012.11.011
• 作为产物：
  描述：

  3,4-二甲氧基苯甲醛 在 四(三苯基膦)钯 、 溴 、 sodium carbonate 作用下， 以 乙二醇二甲醚 、 溶剂黄146 为溶剂， 生成 2,8,9-trimethoxyphenanthridine
  参考文献：
  名称：

  Synthesis, topoisomerase-targeting activity and growth inhibition of lycobetaine analogs

  摘要：

  The plant alkaloid lycobetaine has potent topoisomerase-targeting properties and shows anticancer activity. Based on these findings, several lycobetaine analogs were synthesized mainly differing in their substituents at 2, 8 and 9 position and their biological activities were evaluated. The topoisomerase-targeting properties and cytotoxicity of these structural analogs were assessed in the human gastric carcinoma cell line GXF251L. Performing a plasmid relaxation assay, an increased inhibition of topoisomerase I was found with N-methylphenanthridinium chlorides bearing a 8,9-methylenedioxy moiety or a methoxy group in 2-position. Furthermore, quaternized phenanthridinium derivatives bearing either a 2-methoxy or a 8,9-methylenedioxy moiety in conjunction with a 2-hydroxy or 2-methoxy group display potent topoisomerase II inhibition as shown by decatenation of kinetoplast DNA. In general, the N-methylphenanthridinium chlorides possess more potency in inhibiting topoisomerase I than topoisomerase II. All quaternized derivatives also exhibited potent inhibition of tumor cell growth in the low micromolar concentration range. Hence, N-methylphenanthridinium compounds were found to represent a promising class of compounds, potently inhibiting both, topoisomerases I and II, and may be further developed into clinically useful topoisomerase inhibitors. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2012.11.011

文献信息

• Reagent‐Free C−H/N−H Cross‐Coupling: Regioselective Synthesis of N‐Heteroaromatics from Biaryl Aldehydes and NH ₃
  作者：Huai‐Bo Zhao、Zhan‐Jiang Liu、Jinshuai Song、Hai‐Chao Xu

  DOI：10.1002/anie.201707192

  日期：2017.10.2

  An unprecedented synthesis of N‐heteroaromatics from biaryl aldehydes and NH3 through reagent‐free C−H/N−H cross‐coupling has been developed. The electrosynthesis uses NH3 as an inexpensive and atom‐economic nitrogen donor, requires no oxidizing agents, and allows efficient and regioselective access to a wide range of phenanthridines and structurally related polycyclic N‐heteroaromatic products.

  通过无试剂的C / H / N-H交叉偶联，由联芳基醛和NH 3合成了N-杂芳族化合物，这是空前的。电合成使用NH 3作为廉价且原子经济的氮供体，不需要氧化剂，并允许有效且区域选择性地访问各种菲啶和结构相关的多环N-杂芳族化合物。