Using O=C(NC1CCN(CCCCl)CC1)c1ccccc1, Cc1cc(=O)c2ccc(O)cc2o1 to produce Cc1cc(=O)c2ccc(OCCCN3CCC(NC(=O)c4ccccc4)CC3)cc2o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.