4-Methyl-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
4-Methoxy-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
4-Methyl-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
4-Methoxy-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
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