Methyl 6-bromo-5-cyanonicotinate
4-(Difluoromethyl)-5-nitro-3-(trifluoromethyl)pyridine-2-carbonyl chloride
4-Amino-6-(bromomethyl)-2-(difluoromethyl)pyridine-3-acetonitrile
Ethyl 3-cyano-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-carboxylate
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