Using O=C(NC1CCNCC1)c1ccccc1, OC(CCl)COc1cccc2ccccc12 to produce O=C(NC1CCN(CC(O)COc2cccc3ccccc23)CC1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.