4-Bromo-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
2-Chloro-3-fluoro-5-(trifluoromethoxy)pyridine-4-sulfonyl chloride
4-Bromo-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxaldehyde
5-Chloro-2-fluoro-4-(trifluoromethoxy)pyridine-3-sulfonamide