Ethyl 2-amino-6-(chloromethyl)-4-(difluoromethyl)pyridine-3-acetate
Ethyl 6-amino-4-(chloromethyl)-2-(difluoromethyl)pyridine-3-acetate
Ethyl 2-amino-3-(chloromethyl)-6-(difluoromethyl)pyridine-5-acetate
2-Amino-5-(difluoromethyl)-6-(trifluoromethyl)pyridine-3-methanol