2-(Difluoromethyl)-3-fluoro-5-hydroxypyridine-4-carboxamide
5-Cyano-2-(difluoromethyl)-4-nitropyridine-3-carboxamide
4-Cyano-2-(difluoromethyl)-5-nitropyridine-3-carboxamide
5-Cyano-3-(difluoromethyl)-4-methylpyridine-2-carboxamide
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