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