Using CC(C(=O)Nc1ccc2[nH]c(=O)n(Cc3ccc(Cl)cc3)c2n1)N(C)C(=O)OC(C)(C)C to produce CNC(C)C(=O)Nc1ccc2[nH]c(=O)n(Cc3ccc(Cl)cc3)c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.