Ethyl 3-(difluoromethyl)-5-nitropyridine-2-carboxylate
4-(Difluoromethyl)-2-methylpyridine-3-acetic acid
Ethyl 2-(difluoromethyl)-6-nitropyridine-3-carboxylate
2-(Difluoromethyl)-5-methylpyridine-3-acetic acid
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