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