4-Bromo-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylic acid
5-Chloro-2-methoxy-3-methyl-6-(trifluoromethoxy)pyridine
4-Bromo-6-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylic acid
4-Chloro-3-methoxy-6-methyl-2-(trifluoromethoxy)pyridine