Using COc1cc(Nc2nc(C)cc(Cl)n2)cc(OC)c1OC, [O-]c1ccccc1 to produce COc1cc(Nc2nc(C)cc(Oc3ccccc3)n2)cc(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.