Using CCOC(=O)c1c(O)c2cc(-c3ccc4c(ccn4C)c3)c(Cl)cc2[nH]c1=O to produce Cn1ccc2cc(-c3cc4c(O)cc(=O)[nH]c4cc3Cl)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.