Ethyl 2-amino-4-(bromomethyl)-3-(difluoromethyl)pyridine-6-acetate
Ethyl 2-amino-3-(bromomethyl)-4-(difluoromethyl)pyridine-6-acetate
4-Amino-6-(bromomethyl)-3-(difluoromethyl)pyridine-2-acetic acid
Ethyl 4-amino-2-(bromomethyl)-3-(difluoromethyl)pyridine-5-acetate