3-Cyano-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-6-acetonitrile
2-Fluoro-5-methoxy-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
3-Cyano-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-acetonitrile
Methyl 4-cyano-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-5-acetate