2-(Chloromethyl)-5-(difluoromethyl)-6-fluoro-3-nitropyridine
3-(Bromomethyl)-6-(difluoromethyl)-2-fluoro-4-nitropyridine
4-(Bromomethyl)-6-(difluoromethyl)-2-fluoro-3-nitropyridine
4-(Difluoromethyl)-3-fluoro-2-nitro-6-(trifluoromethyl)pyridine
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