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