Synthesis of some new mono, bis-indolo[1, 2-c]quinazolines: evaluation of their antimicrobial studies
                                
                                    
                                        作者:Rondla Rohini、P. Muralidhar Reddy、Kanne Shanker、Anren Hu、Vadde Ravinder                                    
                                    
                                        DOI:10.1590/s0103-50532010000500018
                                    
                                    
                                        日期:——
                                    
                                    A convenient three-step strategy is proposed for the synthesis of mono and bis-indolo[1,2-c]quinazolines from 2-(2-aminophenyl)indole and various aryl aldehydes. The newly synthesized compounds were characterized by elemental analysis, IR, H-1 NMR, C-13 NMR, and mass spectroscopic investigation. All the derivatives were screened for antibacterial (S. aureus, B. subtilis, S. pyogenes, S. typhimurium, E. coli, K. pneumonia) and antifungal (A. niger, C. albicans, T. viridae) activities by cup plate method. Among the compounds tested, mono-indolo[1,2-c]quinazolines (15-18) exhibited good antibacterial activities while 15 and 18 also showed notable antifungal activity. Especially, 19 and 20 exhibited stronger antibacterial as well as antifungal activity against all tested strains.