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