2,4-Bis(2,3,4-trichlorophenyl)-3-(difluoromethoxy)-6-(trifluoromethyl)pyridine
3,5-Bis(3,4,5-trichlorophenyl)-4-(difluoromethoxy)pyridine
3,5-Bis(3,4,5-trichlorophenyl)-2-(difluoromethoxy)pyridine
3,5-Bis(2,4,6-trichlorophenyl)-4-(difluoromethoxy)pyridine