4-Chloro-2-cyano-3-(difluoromethyl)pyridine-6-acetonitrile
6-(Aminomethyl)-2-chloro-3-(difluoromethyl)-4-hydroxypyridine
3-Chloro-4-cyano-6-(difluoromethyl)pyridine-2-acetonitrile
5-Bromo-4-(bromomethyl)-3-(difluoromethyl)pyridine-2-acetic acid
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