2-Cyano-3-nitro-4-(trifluoromethoxy)pyridine-6-carboxaldehyde
3-(Aminomethyl)-6-cyano-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine
5-Fluoro-2-hydroxy-3-nitro-6-(trifluoromethoxy)pyridine
5-(Aminomethyl)-2-cyano-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine