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