2-(Fluoromethyl)-4-methyl-3-nitro-6-(trifluoromethoxy)pyridine
2-(Chloromethyl)-3-methyl-5-nitro-4-(trifluoromethoxy)pyridine
2-(Fluoromethyl)-3-methyl-6-nitro-4-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-2-nitro-4-(trifluoromethoxy)pyridine-6-carboxylic acid