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