3-Hydroxy-6-nitro-2-(trifluoromethoxy)pyridine-5-carboxamide
5-(Bromomethyl)-4-hydroxy-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
4-Chloro-6-(difluoromethyl)-2-methylpyridine-3-carboxamide
3-Fluoro-4-hydroxy-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine