Using O=C([O-])[O-], OC1CCN(c2nc(Cl)cc(-c3ccccc3)n2)CC1 to produce OC1CCN(c2nc(-c3ccccc3)cc(-c3ccc4c(c3)OCO4)n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.