Using CCCC(Oc1c(C)nn2c(-c3ccc(Cl)cc3Cl)c(C)oc12)C(=O)OCC to produce CCCC(CO)Oc1c(C)nn2c(-c3ccc(Cl)cc3Cl)c(C)oc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.