Using CCOC(=O)NCC(C)OS(C)(=O)=O, Oc1ccccc1Oc1cccc(Cl)c1 to produce CCOC(=O)NCC(C)Oc1ccc(Oc2cccc(Cl)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.