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