2-Amino-5-chloro-3-(difluoromethyl)pyridine-4-carboxylic acid
6-Amino-3-bromo-4-cyano-2-(difluoromethyl)pyridine
2-Amino-6-chloro-3-(difluoromethyl)pyridine-4-acetic acid
6-Amino-4-chloro-3-(difluoromethyl)pyridine-2-carboxylic acid
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