Ethyl 3-chloro-4-(difluoromethyl)-2-nitropyridine-5-acetate
Ethyl 3-chloro-2-(difluoromethyl)-4-nitropyridine-5-acetate
Methyl 3-chloro-6-(difluoromethyl)-4-nitropyridine-2-acetate
3-Chloro-6-(difluoromethyl)-4-nitropyridine-2-carbonyl chloride
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