2-Cyano-4-(difluoromethyl)-3-hydroxy-5-(trifluoromethyl)pyridine
2-Cyano-3-(difluoromethyl)-4-methoxy-6-nitropyridine
5-Cyano-2-(difluoromethyl)-3-hydroxypyridine-6-carboxaldehyde
4-Cyano-3-(difluoromethyl)-6-hydroxypyridine-2-carboxaldehyde
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