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