Using OCCCO, COc1ccc(C)cc1S(=O)(=O)Oc1cc(C)cc(O)c1 to produce COc1ccc(C)cc1S(=O)(=O)Oc1cc(C)cc(OCCCO)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.