Using CCn1cc(C(=O)O)c(=O)c2cc(F)c(N3CCN(CC4CCN(C=O)CC4)CC3)cc21 to produce CCn1cc(C(=O)O)c(=O)c2cc(F)c(N3CCN(CC4CCNCC4)CC3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.