2-Amino-3-cyano-4-(difluoromethyl)pyridine-5-carboxaldehyde
4-Amino-2-chloro-3-(difluoromethyl)pyridine-6-carboxaldehyde
4-Amino-5-cyano-3-(difluoromethyl)pyridine-2-methanol
4-Amino-3-bromo-5-cyano-2-(difluoromethyl)pyridine
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