Using CCN(CC)c1nc2cc(C(=O)OC)ccc2nc1-c1cc2ccccc2o1 to produce CCN(CC)c1nc2cc(C(=O)O)ccc2nc1-c1cc2ccccc2o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.