2-Amino-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-carboxaldehyde
2-Amino-4-hydroxy-3-(trifluoromethoxy)pyridine-6-acetic acid
6-Amino-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
2-Amino-3-hydroxy-6-(trifluoromethoxy)pyridine-4-acetic acid