2-Bromo-3-nitro-4-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
3-Bromo-6-methyl-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
5-Bromo-2-methyl-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
3-Bromo-2-methyl-4-(trifluoromethoxy)-6-(trifluoromethyl)pyridine