Methyl 2-hydroxy-5-nitro-3-(trifluoromethoxy)pyridine-4-acetate
6-(Chloromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxylic acid
Methyl 4-fluoro-3-(fluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylate
2-(Chloromethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-5-carboxylic acid