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