4-Chloro-2-fluoro-3-hydroxy-6-(trifluoromethoxy)pyridine
3-Chloro-2-(difluoromethyl)-4-methoxy-6-(trifluoromethoxy)pyridine
2-Chloro-6-(difluoromethyl)-5-methoxy-3-(trifluoromethoxy)pyridine
2-Chloro-6-(difluoromethyl)-3-methoxy-5-(trifluoromethoxy)pyridine