ethyl 1H-benzo[g]indazole-3-carboxylate | 29984-91-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: ethyl 1H-benzo[g]indazole-3-carboxylate
• 英文别名: 1(2)H-benzo[g]indazole-3-carboxylic acid ethyl ester；3-Carbethoxy-6,7-benzo-indazol；ethyl 2H-benzo[g]indazole-3-carboxylate
• CAS: 29984-91-6
• 化学式: C₁₄H₁₂N₂O₂
• 分子量: 240.261
• InChiKey: SMBOTPQVJBWEHV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.14
• 拓扑面积：
  55
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  ethyl 1H-benzo[g]indazole-3-carboxylate 在 氢氧化钾 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 生成
  参考文献：
  名称：

  Chromophore-modified bis-benzo[g]indole carboxamides: synthesis and antiproliferative activity of bis-benzo[g]indazole-3-carboxamides and related dimers

  摘要：

  Tricyclic pyrazole dimers that comprise two kinds of CONH-(CH(2))(n)-N(CH(3))-(CH(2))(n)-NHCO bridges to which are linked potential DNA-intercalating groups such as 1H-benzo[g]indazole, 2H-benzo[g]indazole and 1,4-dihydroindeno[1,2-c]pyrazole were designed, synthesized and some of them evaluated in vitro by NCI (Bethesda, USA) against nine types of cancer cells. Compounds 2a, 2f-i and 2o-r demonstrated significant antiproliferative activity, all with GI(50) values in the low micromolar range. Preliminary analysis of the structure-activity relationship for dimers 2 indicated that: (i) in the ground terms (2a and 2k) antitumor activities were strongly related to the type of chromophore, (ii) in contrast, either 1H-benzo[g]indazole- or 1,4-dihydroindeno[1,2-c]pyrazole-dimers when bore a N(1)-aryl group (2g, 2h, 2i, 2o, 2p, 2q and 2r) generally showed a good level of antitumor potency and (iii) for the most representative compounds (pairs of compounds: 2g,2h; 2o,2p and 2q,2r) the length of the bridges did not significantly contribute to the variations in cytotoxicity. Two members of this series, 2f and 2q, were selected and tested in the hollow fiber cell assay to evaluate in a preliminary fashion their in vivo antitumor activity. Finally, viscosity measurement of 2f with poly(dA-dT)(2), confirmed that these promising compounds behaved as typical DNA-intercalating agents.

  DOI：

  10.1016/s0014-827x(03)00131-9
• 作为产物：
  描述：

  ethyl 4,5-dihydro-1H-benzo[g]indazole-3-carboxylate 在 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 二氯甲烷 为溶剂， 反应 12.0h， 以82%的产率得到ethyl 1H-benzo[g]indazole-3-carboxylate
  参考文献：
  名称：

  Chromophore-modified bis-benzo[g]indole carboxamides: synthesis and antiproliferative activity of bis-benzo[g]indazole-3-carboxamides and related dimers

  摘要：

  Tricyclic pyrazole dimers that comprise two kinds of CONH-(CH(2))(n)-N(CH(3))-(CH(2))(n)-NHCO bridges to which are linked potential DNA-intercalating groups such as 1H-benzo[g]indazole, 2H-benzo[g]indazole and 1,4-dihydroindeno[1,2-c]pyrazole were designed, synthesized and some of them evaluated in vitro by NCI (Bethesda, USA) against nine types of cancer cells. Compounds 2a, 2f-i and 2o-r demonstrated significant antiproliferative activity, all with GI(50) values in the low micromolar range. Preliminary analysis of the structure-activity relationship for dimers 2 indicated that: (i) in the ground terms (2a and 2k) antitumor activities were strongly related to the type of chromophore, (ii) in contrast, either 1H-benzo[g]indazole- or 1,4-dihydroindeno[1,2-c]pyrazole-dimers when bore a N(1)-aryl group (2g, 2h, 2i, 2o, 2p, 2q and 2r) generally showed a good level of antitumor potency and (iii) for the most representative compounds (pairs of compounds: 2g,2h; 2o,2p and 2q,2r) the length of the bridges did not significantly contribute to the variations in cytotoxicity. Two members of this series, 2f and 2q, were selected and tested in the hollow fiber cell assay to evaluate in a preliminary fashion their in vivo antitumor activity. Finally, viscosity measurement of 2f with poly(dA-dT)(2), confirmed that these promising compounds behaved as typical DNA-intercalating agents.

  DOI：

  10.1016/s0014-827x(03)00131-9

文献信息

• Facile and efficient synthesis of indazole derivatives by 1,3-cycloaddition of arynes with diazo compounds and azomethine imides
  作者：Tienan Jin、Fan Yang、Yoshinori Yamamoto

  DOI：10.1135/cccc2009014

  日期：——

  N-Unsubstituted indazoles 3 and 1-arylindazoles 4 are readily available in good to high yields through [3+2] cycloaddition of 2-(trimethylsilyl)aryl triflates 1 and diazo compounds in the presence of KF or CsF under mild reaction conditions. Furthermore, we found that azomethine imides also underwent cycloaddition reaction with 2-(trimethylsilyl)phenyl triflates (1a) in the presence of KF to afford indazolone derivatives 6 in moderate yields.

  N-未取代吲唑3和1-芳基吲唑4可通过2-(三甲基硅基)芳基三氟甲烷磺酸酯1和重氮化合物在KF或CsF存在下在温和反应条件下进行[3+2]环加成反应，以良好至高产率方便获得。此外，我们发现偶氮亚甲基亚胺也可在KF存在下与2-(三甲基硅基)苯基三氟甲烷磺酸酯（1a）发生环加成反应，得到吲唑酮衍生物6，产率中等。
• An Efficient, Facile, and General Synthesis of 1H-Indazoles by 1,3-Dipolar Cycloaddition of Arynes with Diazomethane Derivatives
  作者：Tienan Jin、Yoshinori Yamamoto

  DOI：10.1002/anie.200700101

  日期：2007.4.27