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