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