Ethyl 3-amino-6-(difluoromethyl)-2-(trifluoromethyl)pyridine-5-acetate
6-Bromo-4-chloro-2-(difluoromethyl)-3-fluoropyridine
Ethyl 5-amino-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-6-acetate
Ethyl 3-amino-5-(difluoromethyl)-2-(trifluoromethyl)pyridine-4-acetate