5-Cyano-2-(difluoromethyl)-4-hydroxypyridine-3-sulfonamide
2-Cyano-5-(difluoromethyl)-3-fluoropyridine-6-acetonitrile
6-Methyl-5-(trifluoromethyl)picolinonitrile
3-Chloro-5-(difluoromethyl)-6-iodo-2-methoxypyridine
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