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