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