Using COc1cc(CN2CCN(C(=O)c3ccc4c(c3)C(=O)C3(CC3)O4)CC2)cc(OC)c1OC to produce COc1cc(CN2CCN(C(=O)c3ccc4c(c3)C(O)C3(CC3)O4)CC2)cc(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.