5-(Chloromethyl)-4-(difluoromethyl)-2-fluoro-3-nitropyridine
2-(Chloromethyl)-5-(difluoromethyl)-6-fluoro-3-nitropyridine
3-(Bromomethyl)-6-(difluoromethyl)-2-fluoro-4-nitropyridine
4-(Bromomethyl)-6-(difluoromethyl)-2-fluoro-3-nitropyridine
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