3-Fluoro-6-nitro-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
5-Fluoro-2-nitro-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
3-Hydroxy-2-methoxy-4-(trifluoromethoxy)pyridine-5-acetic acid
4-Fluoro-3-nitro-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine