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