Using COC(=O)/C=C/c1cc(O)c2c(c1)C(C(=O)OC)C(c1ccc(O)c(O)c1)O2, O=C(Cl)CCl to produce O=C(CCl)c1ccc2c(c1)CCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.