Using CN1CCNCC1, O=C(O)c1cn(S(=O)(=O)c2ccccc2)c2ccccc12 to produce CN1CCN(C(=O)c2cn(S(=O)(=O)c3ccccc3)c3ccccc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.