Using Nc1ccc(C(c2cccc(Cl)c2)n2ccnc2)cc1N, CCOC(=O)C(=O)CC(C)C to produce CC(C)Cc1nc2cc(C(c3cccc(Cl)c3)n3ccnc3)ccc2[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.