Using O=C([O-])[O-], CC(C)(C)OC(=O)N1CCN(S(=O)(=O)c2c[nH]nn2)CC1 to produce Cn1cc(S(=O)(=O)N2CCN(C(=O)OC(C)(C)C)CC2)nn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.