4-Fluoro-3-methoxy-2-(trifluoromethoxy)pyridine-6-carbonyl chloride
4-Fluoro-6-methoxy-2-(trifluoromethoxy)pyridine-3-carbonyl chloride
4-Fluoro-6-methoxy-3-(trifluoromethoxy)pyridine-2-carbonyl chloride
5-Fluoro-3-methoxy-2-(trifluoromethoxy)pyridine-4-carbonyl chloride