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