Decarboxylative radical alkylation of 3,6-dichloropyridazine (I) using pivalic acid (II) and ammonium persulfate in the presence of silver nitrate catalyst furnished 3,6-dichloro-4-tert-butylpyridiazine (III). This was then condensed with 2,5-difluorobenzoyl hydrazide (IV) to produce the triazolopyridazine derivative (V). The remaining chlorine atom was finally displaced with (2-methyl-2H-1,2,4-triazol-3-yl)methanol (VI) using NaH in DMF to afford the title compound.