3-Bromo-4-methoxy-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
5-Bromo-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-4-acetic acid
3-Bromo-2-methoxy-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
3-Bromo-5-(fluoromethyl)-4-(trifluoromethoxy)pyridine-2-acetic acid