Using CCOC(=O)C(Cc1ccc(OCCCOc2ccc(-c3ccccc3)cc2)c(Cl)c1)OC to produce CO[C@@H](Cc1ccc(OCCCOc2ccc(-c3ccccc3)cc2)c(Cl)c1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.