4-Bromo-2-cyano-3-methyl-6-(trifluoromethoxy)pyridine
2-Bromo-3-cyano-4-methyl-5-(trifluoromethoxy)pyridine
3-Bromo-6-cyano-2-methoxy-5-(trifluoromethoxy)pyridine
5-Bromo-2-cyano-4-methoxy-3-(trifluoromethoxy)pyridine
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