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