Synthesis, characterization and antimicrobial studies of some new quinoline incorporated benzimidazole derivatives
作者:B. Garudachari、M.N. Satyanarayana、B. Thippeswamy、C.K. Shivakumar、K.N. Shivananda、Gurumurthy Hegde、Arun M. Isloor
DOI:10.1016/j.ejmech.2012.05.027
日期:2012.8
Two new series of quinoline incorporated benzimidazole derivatives (4a–i and 8a–f) were synthesized from substituted aniline and isatin through multi-step reaction. 6-substituted-4-carboxyquinolines (3a,b and 7) were synthesized by multi component one pot reactions (via Doebner reaction and Pfitzinger reaction respectively) and the targeted benzimidazole derivatives were obtained by the reaction of
Design, synthesis and antitumour activity of bisquinoline derivatives connected by 4-oxy-3-fluoroaniline moiety
作者:Sai Li、Qiang Huang、Yajing Liu、Xiaolong Zhang、Shuang Liu、Chao He、Ping Gong
DOI:10.1016/j.ejmech.2013.04.001
日期:2013.6
A series of novel bisquinoline derivatives connected by a 4-oxy-3-fluoroaniline moiety were synthesized and evaluated for their in vitro antitumour activities against a panel of five cancer cell lines (H460, HT-29, MKN-45, U87MG, and SMMC-7721). Most of compounds tested showed a potent activity and high selectivity towards the H460 and MKN-45 cell lines. Among the compounds tested, six (15d, 15e, 15m, 15n, 16a, and 16i) were further examined for their c-Met kinase activity; the compounds showed high efficacy with IC50 values in the single-digit nM range. An analysis of structure activity relationships indicated that an unsubstituted or a halogen-substituted phenyl ring on the 2-arylquinoline-4-carboxamide moiety was favourable for antitumour activity. (C) 2013 Elsevier Masson SAS. All rights reserved.
Phenylquinolinecarboxylic acids and derivatives as antitumor agents