6-(4-bromophenyl)-3-methyl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine

3-methyl-6-phenyl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine

6-(4-chlorophenyl)-3-methyl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine