Using O, C=Cc1ccc(-c2noc(-c3cc(C)nc(NC(C)C)n3)n2)cc1 to produce Cc1cc(-c2nc(-c3ccc(C(O)CO)cc3)no2)nc(NC(C)C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.