6-Bromo-3-cyano-4-(difluoromethyl)pyridine-2-acetonitrile
2-Chloro-6-cyano-3-iodo-4-(trifluoromethoxy)pyridine
3-Amino-5-(chloromethyl)-2-(difluoromethyl)pyridine-4-acetic acid
5-Amino-3-(difluoromethyl)-2-methyl-4-nitropyridine
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