4-Bromo-6-cyano-2-(difluoromethyl)pyridine-3-sulfonamide
Methyl 4-bromo-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate
2-Amino-3-bromo-4-cyano-5-(trifluoromethoxy)pyridine
Ethyl 6-amino-2-nitro-3-(trifluoromethoxy)pyridine-4-carboxylate