Using COC(=O)N1CCc2c(cccc2S(=O)(=O)N(C)CC2CCN(Cc3ccccc3)CC2)C1 to produce COC(=O)N1CCc2c(cccc2S(=O)(=O)N(C)CC2CCNCC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.