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