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