Using CS(=O)(=O)OC1Cc2ccccc2C1, CCCOC(=O)C(C)Oc1ccc(O)cc1 to produce CCCOC(=O)C(C)Oc1ccc(OC2Cc3ccccc3C2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.