2-Amino-6-(difluoromethyl)-4-nitropyridine-3-carboxylic acid
4-Amino-3-(difluoromethyl)-5-iodo-2-(trifluoromethyl)pyridine
2-Amino-6-(difluoromethyl)-3-iodo-5-(trifluoromethyl)pyridine
6-Amino-3-(difluoromethyl)-2-iodo-4-(trifluoromethyl)pyridine
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