3-Bromo-6-chloro-4-(difluoromethyl)pyridine-2-acetonitrile
5-Bromo-2-chloro-3-(difluoromethyl)pyridine-4-acetonitrile
4-Amino-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-6-carboxylic acid
4-Bromo-5-chloro-3-(difluoromethyl)pyridine-2-acetonitrile
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