Using COC(=O)c1ccc2cc(-c3ccccc3)c(-c3ccc(OC)cc3)nc2c1 to produce COc1ccc(-c2nc3cc(C(=O)O)ccc3cc2-c2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.