3-Bromo-2,4-dimethoxy-5-(trifluoromethoxy)pyridine
2,6-Dimethoxy-3-fluoro-5-(trifluoromethoxy)pyridine
5-Bromo-2,3-dimethoxy-6-(trifluoromethoxy)pyridine
2,4-Dimethoxy-3-fluoro-6-(trifluoromethoxy)pyridine
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