50342-08-0 2-(Chloromethyl)-2-imidazoline

25676-75-9 4-Bromo-1-methyl-1H-imidazole

71759-87-0 4-Iodo-1-methyl-1H-imidazole

18087-73-5 3-Bromoimidazo[1,2-b]pyridazine