Using COC(=O)Cn1nc(-c2ccc(OC)cc2)nc1-c1ccccc1 to produce COc1ccc(-c2nc(-c3ccccc3)n(CC(=O)O)n2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.