Using NCCSC12CC3CC(CC(C3)C1)C2, CC(C)(C)C(Br)C(=O)O to produce CC(C)(C)C(NCCSC12CC3CC(CC(C3)C1)C2)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.