Ethyl 2-(difluoromethyl)pyridine-6-carboxylate
3-(Difluoromethyl)-4-methoxypyridine-5-carbonyl chloride
2-Bromo-5-(difluoromethyl)-4-iodopyridine
4-(Difluoromethyl)-5-(trifluoromethyl)pyridine-2-acetonitrile
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