5-(3,4-Dichlorophenyl)-2,3-difluoropyridine
3-Chloro-4-(3,4-dichlorophenyl)-2,5,6-trifluoropyridine
5-Chloro-3-(3,4-dichlorophenyl)-2-fluoropyridine
3-Chloro-2-(3,4-dichlorophenyl)-5-fluoropyridine
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