Using COc1nccc(Cl)c1-c1nc2cc3c(cc2[nH]1)C(=O)N(C(C)C)C3=O to produce CC(C)N1C(=O)c2cc3nc(-c4c(Cl)cc[nH]c4=O)[nH]c3cc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.