3-Bromo-2-(difluoromethyl)-4-hydroxypyridine-5-sulfonamide
6-(Chloromethyl)-3-iodo-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
4-Hydroxy-6-(trifluoromethyl)picolinonitrile
2-Cyano-3-methoxy-4-(trifluoromethoxy)pyridine-5-sulfonamide
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