Using BrCc1ccccc1, CCOC(=O)c1sc(N2CCNC2=O)nc1C to produce CCOC(=O)c1sc(N2CCN(Cc3ccccc3)C2=O)nc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.