Using Clc1ccnc(Cl)n1, O=S(=O)(c1ccccc1Cl)[C@H]1CCNC1 to produce O=S(=O)(c1ccccc1Cl)[C@H]1CCN(c2ccnc(Cl)n2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.