Using CC(=O)C=O, CC(C)(C)OC(=O)N[C@H]1CN(c2ccc(N)c(N)n2)CC[C@@H]1c1cc(F)c(F)cc1F to produce Cc1cnc2ccc(N3CC[C@H](c4cc(F)c(F)cc4F)[C@@H](NC(=O)OC(C)(C)C)C3)nc2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.