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