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