Using C=O, COc1ccccc1Nc1ncc(Cl)c(Nc2ccc(N3CCNCC3)c3c2C(=O)N(C)C3)n1 to produce COc1ccccc1Nc1ncc(Cl)c(Nc2ccc(N3CCN(C)CC3)c3c2C(=O)N(C)C3)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.