2-Chloro-3-(chloromethyl)-5-methoxy-6-(trifluoromethoxy)pyridine
2-Chloro-5-(difluoromethyl)-3-methoxy-4-(trifluoromethoxy)pyridine
3-Chloro-6-(fluoromethyl)-4-methoxy-2-(trifluoromethoxy)pyridine
5-Chloro-3-(fluoromethyl)-4-methoxy-2-(trifluoromethoxy)pyridine