Methyl 4-amino-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate
5-Bromo-2-cyano-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
Ethyl 5-bromo-2-cyano-3-(trifluoromethoxy)pyridine-4-carboxylate
3-Bromo-2-cyano-6-(trifluoromethoxy)pyridine-5-sulfonyl chloride