3-Bromo-2-hydroxy-6-nitro-5-(trifluoromethoxy)pyridine
3-(Bromomethyl)-2-hydroxy-5-nitro-4-(trifluoromethoxy)pyridine
4-Chloro-3-fluoro-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
Ethyl 3-amino-5-(bromomethyl)-6-(difluoromethyl)pyridine-2-carboxylate