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