Using CCOC(=O)CBr, C[C@@H](c1ccc(Br)cc1)N(CCC(=O)c1ccc(F)cc1)C(=O)OC(C)(C)C to produce CCOC(=O)CC(O)(CCN(C(=O)OC(C)(C)C)[C@@H](C)c1ccc(Br)cc1)c1ccc(F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.