2,5-Dichloro-3-(trifluoromethoxy)pyridine-4-sulfonamide
2-(Chloromethyl)-5-(difluoromethyl)-4-methyl-3-(trifluoromethoxy)pyridine
4,6-Dichloro-3-(trifluoromethoxy)pyridine-2-sulfonamide
6-(Chloromethyl)-4-(difluoromethyl)-2-methyl-3-(trifluoromethoxy)pyridine