Using C[N+]1([O-])CCOCC1, Cn1c(=O)c2c(-c3ccccc3)n(N(CCCO)C(=O)OCc3ccccc3)cc2n(C)c1=O to produce Cn1c(=O)c2c(-c3ccccc3)n(N(CCC(=O)O)C(=O)OCc3ccccc3)cc2n(C)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.