A Greener Approach Synthesis and Docking Studies of Perimidine Derivatives as Potential Anticancer Agents

Microwave solvent-free technique was employed to the synthesis of series of 2-(1H-perimidin-2(3H)-ylidene) derivatives, 4-(1H-perimidin-2-yl)-1H-pyrazole-3-carboxamides, pyrrolo[1,2-a]perimidin-10-ones, and 8H-[1,2,4]triazolo[4,3-a]perimidine. Compared with conventional method, the obvious feature of microwave method is higher in chemical yield, faster reaction rate, and cleaner reaction condition. The structures of the synthesized compounds were confirmed based on their elemental analyses and spectroscopic data (FT-IR, H-1-NMR, F-19-NMR, C-13-NMR, and LC-MS/MS). Some of the synthesized compounds exhibit anticancer potential against the growth of both the human breast (MCF-7) and the liver carcinoma (HepG2) tumor cells. The most active cytotoxic perimidine derivatives were docked against topoisomerase II to investigate their binding and DNA intercalating activity against the protein crystal structure.