4-Amino-3-(chloromethyl)-2-(difluoromethyl)-6-nitropyridine
2-Amino-6-(difluoromethyl)-5-methylpyridine-3-sulfonamide
6-Bromo-2-(difluoromethyl)-4-iodopyridine-3-methanol
5-(Difluoromethyl)-3-nitro-4-(trifluoromethyl)pyridine-2-sulfonyl chloride
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