4-Cyano-2-fluoro-5-(trifluoromethoxy)pyridine-3-acetonitrile
5-Cyano-3-fluoro-2-(trifluoromethoxy)pyridine-4-acetonitrile
3-Fluoro-2-iodo-5-methoxy-4-(trifluoromethoxy)pyridine
2-Fluoro-5-iodo-6-methoxy-3-(trifluoromethoxy)pyridine
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