Using O=C1O[C@@H](CO)[C@H](c2ccccc2)N1c1ccc(Oc2ccc(Cl)cc2)cc1, O=C([O-])O to produce COC[C@@H]1OC(=O)N(c2ccc(Oc3ccc(Cl)cc3)cc2)[C@H]1c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.