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