Synthesis of 2-methyl-1,2,4-triazolo[4,3-d]-1,2,4-triazino[2,3-a]-benzimidazole and 2-methyl-9-phenylimidazo[1,2-b]-1,2,4-triazolo[4,3-d]-1,2,4-triazine
Synthesis of 2-methyl-1,2,4-triazolo[4,3-d]-1,2,4-triazino[2,3-a]-benzimidazole and 2-methyl-9-phenylimidazo[1,2-b]-1,2,4-triazolo[4,3-d]-1,2,4-triazine