Using [OH-], O=C(c1ccccc1)[C@@H]1C[C@H]2CN(C3=Nc4cc(Cl)ccc4Oc4ccccc43)CCN2C1 to produce O[C@@H]1C[C@H]2CN(C3=Nc4cc(Cl)ccc4Oc4ccccc43)CCN2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.