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