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