3-(Difluoromethyl)-4-fluoro-2-nitro-6-(trifluoromethoxy)pyridine
3-(Chloromethyl)-4-fluoro-2-nitro-5-(trifluoromethoxy)pyridine
5-Fluoro-2-(fluoromethyl)-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
2-Hydroxy-4-methoxy-3-(trifluoromethoxy)pyridine-6-carboxylic acid