5-Amino-2-(difluoromethyl)-3-iodo-6-nitropyridine
2-Amino-4-(difluoromethyl)-3-nitropyridine-6-acetonitrile
5-Amino-2-(difluoromethyl)-3-nitro-6-(trifluoromethyl)pyridine
3-Amino-5-(difluoromethyl)-6-nitro-2-(trifluoromethyl)pyridine
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