6-Chloro-2,3-dimethyl-4-(trifluoromethoxy)pyridine
3,5-Dimethoxy-2-fluoro-6-(trifluoromethoxy)pyridine
4-Chloro-2,3-dimethyl-6-(trifluoromethoxy)pyridine
3,4-Dimethoxy-6-fluoro-2-(trifluoromethoxy)pyridine
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