3-Bromo-5-chloro-4-cyano-2-(difluoromethyl)pyridine
Ethyl 3-amino-2-(difluoromethyl)-6-(trifluoromethyl)pyridine-4-carboxylate
5-Bromo-4-chloro-2-cyano-3-(difluoromethyl)pyridine
Ethyl 2-amino-5-(difluoromethyl)-3-(trifluoromethyl)pyridine-4-carboxylate