4-Bromo-2-(chloromethyl)-3-nitro-6-(trifluoromethoxy)pyridine
4-Bromo-3-(difluoromethyl)-5-methyl-2-(trifluoromethoxy)pyridine
5-Bromo-4-methyl-3-(trifluoromethoxy)pyridine-2-sulfonamide
4-Bromo-2-(difluoromethyl)-5-methyl-3-(trifluoromethoxy)pyridine