Using O=C([O-])CCCCCc1ccc2c(c1)C[C@@H](NCC(O)c1ccc([O-])c(CO)c1)CC2 to produce O=C(O)CCCCCc1ccc2c(c1)C[C@@H](NCC(O)c1ccc(O)c(CO)c1)CC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.