Ethyl 2-amino-5-chloro-4-(difluoromethyl)pyridine-3-carboxylate
Methyl 3-amino-2-chloro-5-(difluoromethyl)pyridine-4-acetate
4-Amino-2-cyano-3-(difluoromethyl)-6-nitropyridine
2-Amino-3-(bromomethyl)-4-(difluoromethyl)-6-iodopyridine
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