3,5-dimethyl-pyrazine-1-oxide

2,6-dimethyl-1-oxidopyrazin-1-ium

1-(2,5-dibromo-3-methylimidazol-4-yl)-2-(6-methylpyrazin-2-yl)ethanone

2-[(E)-1-(2,5-dibromo-3-methylimidazol-4-yl)prop-1-en-2-yl]-6-methylpyrazine

2-[2-(5-bromo-3-methyl-2-methylsulfanylimidazol-4-yl)prop-2-enyl]-6-methylpyrazine