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