3-Amino-6-(difluoromethyl)-2-fluoro-4-(trifluoromethoxy)pyridine
3-Bromo-5-(bromomethyl)-2-(trifluoromethoxy)pyridine-6-carboxaldehyde
5-(Difluoromethyl)-3-nitropyridine-2-carbonyl chloride
2-Chloro-4-(difluoromethyl)-3-fluoropyridine-6-sulfonyl chloride