2-Amino-3-(bromomethyl)-4-(difluoromethyl)pyridine-6-carboxaldehyde
4-Amino-3-(bromomethyl)-5-(difluoromethyl)pyridine-2-carboxylic acid
4-Amino-6-(bromomethyl)-2-(difluoromethyl)pyridine-3-carboxylic acid
5-Amino-3-(bromomethyl)-2-(difluoromethyl)pyridine-4-carboxylic acid