6-(2,3-Difluorophenyl)-5-fluoronicotinaldehyde
6-(2,3-Difluorophenyl)-2-fluoronicotinaldehyde
5-(2,3-Difluorophenyl)-6-fluoronicotinaldehyde
5-(2,3-Difluorophenyl)-2-fluoronicotinaldehyde
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