4-Amino-2-(difluoromethyl)-3-nitro-6-(trifluoromethyl)pyridine
2-Amino-4-(chloromethyl)-5-(difluoromethyl)-3-iodopyridine
3-Amino-5-(difluoromethyl)-2-nitro-6-(trifluoromethyl)pyridine
2-Amino-3-(chloromethyl)-6-(difluoromethyl)-5-iodopyridine
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