Using O=C(NCc1ccc(Cl)cc1)c1cnc2ccc(CO)cc2c1O, C1COCCN1 to produce O=C(NCc1ccc(Cl)cc1)c1cnc2ccc(CN3CCOCC3)cc2c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.