Using O=C(CCl)N1CCN(S(=O)(=O)c2ccc3ccccc3c2)CC1, O=C(O)CCc1ccccc1 to produce O=C(CCc1ccccc1)N1CCN(S(=O)(=O)c2ccc3ccccc3c2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.