2-Hydroxy-4-methoxy-3-(trifluoromethoxy)pyridine-5-sulfonamide
2-Hydroxy-3-methoxy-5-(trifluoromethoxy)pyridine-6-sulfonamide
Methyl 2-fluoro-6-nitro-3-(trifluoromethoxy)pyridine-5-acetate
Methyl 6-fluoro-3-nitro-2-(trifluoromethoxy)pyridine-4-acetate