Methyl 2-hydroxy-4-nitro-3-(trifluoromethoxy)pyridine-5-acetate
2-Fluoro-5-(fluoromethyl)-4-(trifluoromethoxy)pyridine-3-carboxylic acid
Methyl 2-hydroxy-3-nitro-4-(trifluoromethoxy)pyridine-5-acetate
2-Hydroxy-3-nitro-6-(trifluoromethoxy)pyridine-4-carbonyl chloride