Ethyl 2-methyl-6-nitro-3-(trifluoromethoxy)pyridine-5-carboxylate
4-Methyl-6-nitro-2-(trifluoromethoxy)pyridine-3-carboxylic acid
5-(Difluoromethyl)-2-nitro-4-(trifluoromethoxy)pyridine-3-methanol
4-(Difluoromethyl)-5-nitro-2-(trifluoromethoxy)pyridine-3-methanol