RESUMO
Quinazolinones are a group of heterocyclic compounds that have important biological activities such as cytotoxicity, anti-bacterial, and anti-fungal effects. Thiazole-containing compounds have also many biological effects including antitumor, antibacterial, anti-inflammatory, and analgesic activities. Due to significant cytotoxic effects of both quinazoline and thiazole derivatives, in this work a group of quinazolinone-thiazol hybrids were prepared and their cytotoxic effects on three cell lines were evaluated using MTT assay. Compounds A3, A2, B4, and A1 showed highest cytotoxic activities against PC3 cell line. Compounds A3, A5, and A2 were most active against MCF-7 and A3, A5, and A6 showed good cytotoxic effect on HT-29 cell line. According to the results, A3 efficiently inhibited all cell growth tested in a dose dependent manner. The IC50 of A3 was 10 M, 10 µM, and 12 µM on PC3, MCF-7, and HT-29 cells, respectively.
