Using CCOC(=O)c1cccc(-c2cc(Nc3ccc(OC)c(OC)n3)c3nccn3n2)c1 to produce COc1ccc(Nc2cc(-c3cccc(C(=O)O)c3)nn3ccnc23)nc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.