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