Methyl 5-bromo-4-nitro-2-(trifluoromethoxy)pyridine-3-carboxylate
3-Chloro-5-cyano-2-(trifluoromethoxy)pyridine-4-acetic acid
Methyl 3-bromo-2-nitro-6-(trifluoromethoxy)pyridine-5-carboxylate
2-Chloro-4-cyano-3-(trifluoromethoxy)pyridine-5-acetic acid