5-(Difluoromethyl)-4-methoxy-2-nitropyridine-3-carbonyl chloride
2-(Difluoromethyl)-6-methoxy-4-nitropyridine-3-carbonyl chloride
2-(Difluoromethyl)-5-methoxy-6-nitropyridine-3-carbonyl chloride
2-(Difluoromethyl)-5-methoxy-4-nitropyridine-3-carbonyl chloride