Using C=CCC(C=C)OCCCCCCCCCCOc1ccc(C(=O)OC)cc1 to produce C=CCC(C=C)OCCCCCCCCCCOc1ccc(C(=O)O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.