3-Amino-2-cyano-6-(difluoromethyl)-4-methoxypyridine
3-Amino-6-bromo-4-(difluoromethyl)-2-iodopyridine
2-Amino-6-chloro-5-(difluoromethyl)pyridine-3-sulfonamide
3-Amino-2-cyano-4-(difluoromethyl)-6-methoxypyridine
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