Thiosemicarbazones are of interest primarily as ligands for the transition metals coordination [1]. The thiosemicarbazone complexes studied to date have shown a wide spectrum of biological activity: fungicidal, antibacterial, antiviral, and anticancer action [1–9]. The thiosemicarbazones of the pyrimidine series obtained from pyrimidine-2, 4, 5, 6-1H, 3H- tetraone (alloxan) have been poorly studied [10–12]. A major shortcoming of the synthesis ...
