2-Bromo-3-(difluoromethyl)-6-fluoro-5-nitropyridine
4-(Chloromethyl)-2-(difluoromethyl)-5-methoxy-3-nitropyridine
5-(Bromomethyl)-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxamide
Methyl 3-amino-4-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxylate