Using CCOC(COCCCCO)OCC, CCc1cc(OC(=O)c2ccccc2)cc(CC)c1O to produce CCOC(COCCCCOc1c(CC)cc(OC(=O)c2ccccc2)cc1CC)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.