Using CCOC(=O)C=[N+]=[N-], CC(C)(C)OC(=O)N1CCC(=O)CC1 to produce CCOC(=O)C1CCN(C(=O)OC(C)(C)C)CCC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.