2-Bromo-5-methoxy-3-(trifluoromethoxy)pyridine-6-acetic acid
4-Bromo-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-5-acetic acid
3-Bromo-2-methyl-5-nitro-4-(trifluoromethoxy)pyridine
6-Bromo-4-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetic acid