4-Bromo-2-methyl-3-(trifluoromethoxy)pyridine-6-carboxylic acid
3-Bromo-6-methoxy-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
4-Bromo-5-methoxy-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
3-Bromo-5-methyl-6-(trifluoromethoxy)pyridine-2-carboxylic acid