Using CCNCC, COC(=O)c1ccc2ccn(Cc3cccc(CBr)c3)c(=O)c2c1 to produce CCN(CC)Cc1cccc(Cn2ccc3ccc(C(=O)OC)cc3c2=O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.