Using CCOCC, CC(C)C(C)(C#N)N1C(=O)c2ccc3c(ccn3C)c2C1=O to produce CC(C)C(C)(C(N)=O)N1C(=O)c2ccc3c(ccn3C)c2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.