Design, synthesis and antiproliferative activity of novel 2,7-disubstituted triazolo[1,5-a]pyrimidines

In our efforts to identify novel potent anticancer agents, we synthesized a series of 2,7-disubstituted triazolo[1,5-a]pyrimidines (6–16). Their antiproliferative activity against Bel-7402, HT-1080 and WI-38 cell lines was tested by MTT assay in vitro. Four of the compounds (9–11 and 16) displayed promising antiproliferative activity superior to gefitinib, especially compound 9. A preliminary SAR study of these derivatives was performed.