Using Cc1ccccc1N1CCN(CC(=O)c2cccc3c(=O)c(C)c(-c4ccccc4)oc23)CC1 to produce Cc1ccccc1N1CCN(CC(O)c2cccc3c(=O)c(C)c(-c4ccccc4)oc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.