Ethyl 4-chloro-3-cyano-6-(difluoromethyl)pyridine-2-acetate
Ethyl 4-chloro-3-cyano-5-(difluoromethyl)pyridine-2-acetate
2-(Aminomethyl)-6-bromo-3-(difluoromethyl)-5-(trifluoromethyl)pyridine
Ethyl 4-chloro-3-cyano-2-(difluoromethyl)pyridine-5-acetate