Using Nc1ncnn2c(CCCBr)cc(-c3ccc4cn(Cc5ccccc5)nc4c3)c12, [C-]#N to produce N#CCCCc1cc(-c2ccc3cn(Cc4ccccc4)nc3c2)c2c(N)ncnn12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.