Using COc1ccc(CNc2cc(Oc3ccc4c(c3)CC(C(=O)O)CC4)cc[n+]2[O-])cc1 to produce COc1ccc(CNc2cc(Oc3ccc4c(c3)CC(C(=O)O)CC4)ccn2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.