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