Ethyl 3-amino-4-(fluoromethyl)-6-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 3-amino-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine-6-carboxylate
4-Bromo-3-chloro-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
3-Bromo-5-chloro-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride