3-Amino-2-chloro-4-(difluoromethyl)pyridine-6-carboxaldehyde
2-Amino-3-(bromomethyl)-6-chloro-5-(difluoromethyl)pyridine
2-Amino-3-(bromomethyl)-5-chloro-4-(difluoromethyl)pyridine
2-Amino-6-chloro-5-(difluoromethyl)pyridine-3-carboxaldehyde
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