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