Using CO[C@H]1O[C@@H]2CN(C(=O)OC(=O)c3ccccc3)[C@H]1[C@H]2O, O=C(Cl)c1ccccc1 to produce CO[C@H]1O[C@@H]2CN(C(=O)OC(=O)c3ccccc3)[C@H]1[C@H]2OC(=O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.