Methyl 4-(difluoromethyl)-3-methyl-6-nitropyridine-2-acetate
2-(Difluoromethyl)-4-methyl-3-nitropyridine-6-carbonyl chloride
2-(Difluoromethyl)-3-methyl-6-nitropyridine-5-carbonyl chloride
2-(Difluoromethyl)-3-methyl-5-nitropyridine-6-carbonyl chloride