Using Cc1ccc(N2CCNCC2)c(C)c1, O=C(O)c1ccc(CN2CCCS2(=O)=O)cc1 to produce Cc1ccc(N2CCN(C(=O)c3ccc(CN4CCCS4(=O)=O)cc3)CC2)c(C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.