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