Using CC(C)(C)N, O=C(Nc1ccc(C(=O)N2CCN(Cc3cccc(C(=O)[O-])n3)CC2)cc1F)NC1CCC1 to produce CC(C)(C)NC(=O)c1cccc(CN2CCN(C(=O)c3ccc(NC(=O)NC4CCC4)c(F)c3)CC2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.