2-Cyano-5-fluoro-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
Methyl 5-(chloromethyl)-4-cyano-3-(trifluoromethoxy)pyridine-2-acetate
3-(Bromomethyl)-2-fluoro-6-methoxy-5-(trifluoromethoxy)pyridine
Methyl 3-(chloromethyl)-4-cyano-2-(trifluoromethoxy)pyridine-5-acetate