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