5-Amino-3-bromo-4-(difluoromethyl)pyridine-2-carboxaldehyde
3-Amino-2-(aminomethyl)-4-(difluoromethyl)-5-fluoropyridine
3-Amino-5-bromo-2-(difluoromethyl)pyridine-4-carboxaldehyde
3-Amino-2-(chloromethyl)-6-(difluoromethyl)-4-fluoropyridine
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