2-Cyano-5-(difluoromethyl)-4-hydroxypyridine-3-carboxamide
2-Chloro-5-(difluoromethyl)-3-methylpyridine-4-carboxamide
6-Cyano-4-(difluoromethyl)-2-hydroxypyridine-3-carboxamide
6-Chloro-4-(difluoromethyl)-3-methylpyridine-2-carboxamide
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