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