2-Bromo-3-iodo-4-(trifluoromethoxy)pyridine-6-sulfonamide
2-Cyano-5-(difluoromethyl)-6-hydroxy-3-nitropyridine
2-(Difluoromethyl)-6-nitro-3-(trifluoromethoxy)pyridine-5-methanol
2-Chloro-6-hydroxy-3-nitro-4-(trifluoromethoxy)pyridine
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