Using O=C([O-])Cc1nc(N2CCOCC2)cc(=O)[nH]1, OCc1cccc2c1CCN2 to produce O=C(Cc1nc(N2CCOCC2)cc(=O)[nH]1)N1CCc2c(CO)cccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.