Using COC(=O)C1=Cc2cc(-c3ccc(N4CCOCC4)cc3)ccc2N(S(C)(=O)=O)CC1 to produce CS(=O)(=O)N1CCC(C(=O)O)=Cc2cc(-c3ccc(N4CCOCC4)cc3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.