In order to explore and develop new anticancer agents, three series of 2-phenylbenzimidazoles, 15–46, were condensed under simple and mild conditions using sodium metabisulfite as an oxidation agent and another series, 47–55, were obtained via a reduction reaction using sodium borohydride. All the compounds synthesized were evaluated for their in vitro anticancer activities against three human cancer
为了探索和开发新型抗癌药物,利用焦亚硫酸钠作为氧化剂,在简单温和的条件下缩合了三个系列的2-苯基苯并咪唑15-46 ,并通过使用还原剂进行还原反应得到了另一个系列47-55 。硼氢化钠。评估了所有合成的化合物对三种人类癌细胞系的体外抗癌活性。新型化合物38被发现是针对A549、MDA-MB-231和PC3细胞系最有效的多癌症抑制剂(IC 50值分别为4.47、4.68和5.50 μg mL -1 )。此外,化合物40对MDA-MB-231细胞系表现出最佳IC 50值,为3.55 μg mL -1 。结果表明,向化合物37-55引入新的取代基可以提高其抗增殖活性。
Synthesis of imidazo[1,2-<i>c</i>]quinazolin-5(6<i>H</i>)-ones and benzimidazo[1,2-<i>c</i>]quinazolin-6(5<i>H</i>)-ones with the aid of low-valent titanium reagent
作者:Xuan Zhao、Da-Qing Shi
DOI:10.1002/jhet.353
日期:——
A short and facile synthesis of imidazo[1,2-c]quinazolin-5(6H)-ones and benzimidazo[1,2-c]quinazolin-6(5H)-ones was accomplished in good yields via the novel reductive cyclization of 2-(2-nitrophenyl)imidazoles or 2-(2-nitrophenyl)benzoimidazoles with isocyanates promoted by low-valenttitaniumreagent. J. Heterocyclic Chem., (2010).
通过新颖的还原反应,以良好的收率完成了咪唑并[1,2 - c ]喹唑啉-5(6 H)-one和苯并咪唑并[1,2 - c ]喹唑啉-6(5 H)-one的短而容易的合成。低价钛试剂促进异氰酸酯对2-(2-硝基苯基)咪唑或2-(2-硝基苯基)苯并咪唑的环化反应。J.杂环化学。(2010)。