6-Fluoro-3-nitro-4-(trifluoromethoxy)pyridine-2-carboxylic acid
3-Hydroxy-4-methoxy-6-(trifluoromethoxy)pyridine-2-carbonyl chloride
2-Fluoro-5-nitro-3-(trifluoromethoxy)pyridine-4-carboxylic acid
3-Hydroxy-4-methoxy-2-(trifluoromethoxy)pyridine-6-carbonyl chloride