Using CC(C)(C)OC(=O)N1CC(N)C1, COC(=O)c1ccccc1C=O to produce CC(C)(C)OC(=O)N1CC(N2Cc3ccccc3C2=O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.