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