4-Amino-3-(difluoromethyl)-5-fluoropyridine-2-sulfonamide
2-Amino-4-chloro-3-(difluoromethyl)pyridine-6-carboxaldehyde
2-Amino-3-chloro-6-(difluoromethyl)pyridine-4-carboxaldehyde
5-Amino-4-chloro-3-(chloromethyl)-2-(difluoromethyl)pyridine
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