Ethyl 5-cyano-2-methoxy-3-(trifluoromethoxy)pyridine-4-acetate
6-Cyano-2-methoxy-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
2-Cyano-6-methoxy-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
Ethyl 4-cyano-5-methoxy-3-(trifluoromethoxy)pyridine-2-acetate