Using COC(=O)c1cccc2nc(NC(=O)c3cc4ccccc4cn3)oc12 to produce O=C(Nc1nc2cccc(C(=O)O)c2o1)c1cc2ccccc2cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.