4-Amino-2-(aminomethyl)-6-(difluoromethyl)-3-iodopyridine
3-Amino-6-chloro-2-(difluoromethyl)pyridine-4-acetic acid
5-Amino-2-chloro-4-(difluoromethyl)pyridine-3-acetic acid
4-Amino-5-chloro-2-(difluoromethyl)pyridine-3-acetic acid
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