3-(Chloromethyl)-4-fluoro-2-(trifluoromethoxy)pyridine-5-carboxylic acid
3-(Difluoromethyl)-5-hydroxy-4-methoxy-2-(trifluoromethoxy)pyridine
2-(Chloromethyl)-6-(difluoromethyl)-4-fluoro-3-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-4-hydroxy-5-methoxy-2-(trifluoromethoxy)pyridine