Using CC(C)(C)OC(=O)N1CCc2[nH]c(-c3ccnc(N)n3)cc2C1=O, O=C(Cl)c1ccccc1 to produce CC(C)(C)OC(=O)N1CCc2[nH]c(-c3ccnc(NC(=O)c4ccccc4)n3)cc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.