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