Ethyl 2-(difluoromethyl)-3-fluoropyridine-4-carboxylate
Methyl 2-(difluoromethyl)-6-fluoropyridine-3-carboxylate
Methyl 2-(difluoromethyl)-5-fluoropyridine-3-carboxylate
5-(Difluoromethyl)-2-fluoropyridine-3-carboxylic acid
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