3-Amino-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-6-carboxaldehyde
2-Amino-3-hydroxy-5-iodo-4-(trifluoromethoxy)pyridine
3-Amino-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-carboxaldehyde
2-Amino-5-hydroxy-3-(trifluoromethoxy)pyridine-6-acetic acid