Using CCS(=O)(=O)c1cc2c(c(C(=O)O)c1)OCCO2, CCN1CCCC1CN to produce CCN1CCCC1CNC(=O)c1cc(S(=O)(=O)CC)cc2c1OCCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.