Ethyl 2-amino-5-(difluoromethyl)-6-methylpyridine-3-carboxylate
2-Amino-3-(chloromethyl)-5-(difluoromethyl)-4-iodopyridine
Ethyl 2-amino-4-(difluoromethyl)-5-methylpyridine-3-carboxylate
4-Amino-6-(bromomethyl)-2-(difluoromethyl)-3-iodopyridine
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