Ethyl 3-(difluoromethyl)-2-methyl-4-nitropyridine-6-acetate
Ethyl 2-(difluoromethyl)-5-methyl-3-nitropyridine-6-acetate
3-(Chloromethyl)-6-(difluoromethyl)-2-methyl-4-nitropyridine
6-(Chloromethyl)-4-(difluoromethyl)-2-methoxypyridine-3-acetic acid
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