3-Bromo-5-cyano-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2-Amino-3-(fluoromethyl)-4-(trifluoromethoxy)pyridine-5-carboxylic acid
3-Bromo-5-cyano-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
4-Amino-3-methoxy-6-(trifluoromethoxy)pyridine-2-methanol