3-(Difluoromethyl)-5-methoxypyridine-4-sulfonamide
4-Cyano-3-(difluoromethyl)-5-iodopyridine
3-(Difluoromethyl)-4-methoxypyridine-5-sulfonamide
2-(Difluoromethyl)-4-nitro-3-(trifluoromethyl)pyridine
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