Using BrCCCc1ccccc1, COC(=O)c1ccc2c(C)c[nH]c2c1 to produce COC(=O)c1ccc2c(C)cn(CCCc3ccccc3)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.