Synthesis and in vitro cytotoxic effect of 6-amino-substituted 11H- and 11Me-indolo[3,2-c]quinolines
摘要:
A series of 6-amino-11H- indolo[3,2-c]quinoline derivatives with various substituents on the quinoline ring were synthesized. A methyl group introduced to N-11 of the intermediate 4 to elaborate novel analog 7. The cytotoxic effect of these 6-amino-substituted 11H- and 11-methyl-indolo[3,2-c]quinoline derivatives in vitro were tested against MV4-11 (human leukemia), A549 (non-small cell lung cancer) and HCT116 (colon cancer) and BALB/3T3 (normal murine fibroblasts). All the N-11 methylated compounds significantly increased the cytotoxicity. Compound 7p was most active with the IC50 value of 0.052 mu M against the MV4-11 cell line, and also exhibited a selective activity against A549, HCT116 and BALB/3T3 cell line, with the respective IC50 values of 0.112, 0.007 and 0.083 mu M, which were higher or comparable to those of the anticancer drug doxorubicin HCl. The binding constants of 5g and 7h to salmon fish sperm DNA were also evaluated using UV-vis absorption spectroscopy, indicating intercalation binding with constants of 1.05 x 10(6) L/mol and 4.84 x 10(6) L/mol. (C) 2014 Elsevier Masson SAS. All rights reserved.
Synthesis and in vitro cytotoxic effect of 6-amino-substituted 11H- and 11Me-indolo[3,2-c]quinolines
摘要:
A series of 6-amino-11H- indolo[3,2-c]quinoline derivatives with various substituents on the quinoline ring were synthesized. A methyl group introduced to N-11 of the intermediate 4 to elaborate novel analog 7. The cytotoxic effect of these 6-amino-substituted 11H- and 11-methyl-indolo[3,2-c]quinoline derivatives in vitro were tested against MV4-11 (human leukemia), A549 (non-small cell lung cancer) and HCT116 (colon cancer) and BALB/3T3 (normal murine fibroblasts). All the N-11 methylated compounds significantly increased the cytotoxicity. Compound 7p was most active with the IC50 value of 0.052 mu M against the MV4-11 cell line, and also exhibited a selective activity against A549, HCT116 and BALB/3T3 cell line, with the respective IC50 values of 0.112, 0.007 and 0.083 mu M, which were higher or comparable to those of the anticancer drug doxorubicin HCl. The binding constants of 5g and 7h to salmon fish sperm DNA were also evaluated using UV-vis absorption spectroscopy, indicating intercalation binding with constants of 1.05 x 10(6) L/mol and 4.84 x 10(6) L/mol. (C) 2014 Elsevier Masson SAS. All rights reserved.
Synthesis of indolo- and benzothieno[3,2-<i>c</i>]quinolines <i>via</i> POCl<sub>3</sub> mediated tandem cyclization of <i>o</i>-alkynylisocyanobenzenes derived from <i>o</i>-alkynyl-<i>N</i>-phenylformamides
A synthesis of indolo[3,2-c]quinolines and benzothieno[3,2-c]quinolines has been developed employing o-alkynyl-N-phenylformamide derivatives as the substrates. The reaction proceeded via a tandem process involving POCl3-assisted intramolecular cyclization of the firstly formed o-alkynylisocyanobenzenes, leading to the desired products in moderate to high yields. Furthermore, the reaction is efficient
使用邻炔基-N-苯基甲酰胺衍生物作为底物,开发了吲哚并[3,2- c ]喹啉和苯并噻吩并[3,2- c ]喹啉的合成方法。该反应通过串联过程进行,包括 POCl 3辅助的分子内环化首先形成的邻炔基异氰基苯,以中等至高产率产生所需的产物。此外,该反应在克级上是有效的,并且通过胺化、Suzuzki-Miyaura 反应和 Heck 交叉偶联对产物进行了结构修饰。几种选定吲哚的光物理性质[3,2- c] 喹啉通过紫外可见和荧光光谱进行了研究,并使用时间相关的 DFT 计算进行了合理化。