2,6-Dimethoxy-3-(trifluoromethoxy)pyridine-4-carbonyl chloride
4,6-Dimethoxy-2-(trifluoromethoxy)pyridine-3-carbonyl chloride
3,6-Dimethoxy-2-(trifluoromethoxy)pyridine-4-carbonyl chloride
2,4-Dimethoxy-3-(trifluoromethoxy)pyridine-5-carbonyl chloride