Ethyl 3-amino-2-(difluoromethyl)pyridine-5-acetate
3-(Chloromethyl)-6-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-acetonitrile
Ethyl 2-amino-6-(difluoromethyl)pyridine-4-acetate
2-(Chloromethyl)-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetonitrile