3-(Chloromethyl)-2-(difluoromethyl)-4-fluoro-6-(trifluoromethoxy)pyridine
3-Hydroxy-5-methoxy-2-nitro-4-(trifluoromethoxy)pyridine
5-Hydroxy-4-methoxy-3-nitro-2-(trifluoromethoxy)pyridine
2-(Fluoromethyl)-5-hydroxy-6-nitro-3-(trifluoromethoxy)pyridine