Methyl 2-amino-3-(bromomethyl)-5-(difluoromethyl)pyridine-6-carboxylate
3-Amino-6-(bromomethyl)-2-(difluoromethyl)pyridine-4-carboxylic acid
Methyl 2-amino-3-(bromomethyl)-4-(difluoromethyl)pyridine-5-carboxylate
5-Amino-2-(bromomethyl)-4-(difluoromethyl)pyridine-3-carboxylic acid