Using Cc1cc(Cl)ccc1OC1CCN(C(=O)C2CC(O)C(O)C2)CC1 to produce Cc1cc(Cl)ccc1OC1CCN(CC2CC(O)C(O)C2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.