3,5-Bis(perchlorophenyl)-4-(difluoromethoxy)pyridine
3,5-Bis(perchlorophenyl)-2-(difluoromethoxy)pyridine
2,6-Bis(perchlorophenyl)-4-(difluoromethoxy)pyridine
6-(Difluoromethoxy)-2-(trifluoromethyl)-3-(4-(trifluoromethyl)phenyl)pyridine
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