Using CC(C)(C)OC(=O)CBr, CC1CCC(C(C)C)C(OC(=O)C2C(=O)N(Cc3ccc(Br)cc3F)C(=O)c3ccccc32)C1 to produce CC1CCC(C(C)C)C(OC(=O)C2(CC(=O)OC(C)(C)C)C(=O)N(Cc3ccc(Br)cc3F)C(=O)c3ccccc32)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.