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