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