Using COC(=O)c1cccc(NC(=O)c2ccc(-c3ccccn3)cc2)c1O to produce COC(=O)c1cccc2nc(-c3ccc(-c4ccccn4)cc3)oc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.