Using CCCCCCCCOc1ccc(O)cc1, COC(C)c1ccc(C(=O)O)cc1 to produce CCCCCCCCOc1ccc(OC(=O)c2ccc(C(C)OC)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.