Using O=C([O-])O, CCC12CCC(=O)C=C1c1c(cc(OC(C)C(=O)OC3COC(C)(C)O3)c(Cl)c1Cl)C2 to produce CCC12CCC(=O)C=C1c1c(cc(OCC(=O)OCC(O)CO)c(Cl)c1Cl)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.