Ethyl 3-(difluoromethyl)-6-iodo-2-nitropyridine-5-acetate
Ethyl 4-(difluoromethyl)-3-iodo-6-nitropyridine-2-acetate
Ethyl 3-(difluoromethyl)-4-iodo-6-nitropyridine-2-acetate
Ethyl 2-(difluoromethyl)-3-iodo-5-methoxypyridine-6-carboxylate
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