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