Using O=C(CCl)N1CCN(S(=O)(=O)c2ccc3ccccc3c2)CC1, Cc1ccc(OCC(=O)O)cc1 to produce Cc1ccc(OCC(=O)N2CCN(S(=O)(=O)c3ccc4ccccc4c3)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.