2-Hydroxy-4-nitro-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
6-Hydroxy-2-methoxy-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
2-Fluoro-3-methyl-4-(trifluoromethoxy)pyridine-5-sulfonamide
2-Hydroxy-6-methoxy-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine