3-Amino-2-hydroxy-5-(trifluoromethoxy)pyridine-4-carboxaldehyde
6-Amino-2-hydroxy-3-(trifluoromethoxy)pyridine-4-carboxaldehyde
2,6-Diiodo-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine
2-Amino-6-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxaldehyde