Using CC(=O)NCC1CN(c2ccc(N3CC4OCCN(C(=O)COC(C)=O)C4C3)c(F)c2)C(=O)O1 to produce CC(=O)NCC1CN(c2ccc(N3CC4OCCN(C(=O)CO)C4C3)c(F)c2)C(=O)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.