Using C=C(C)CC(CCN(C(=O)OC(C)(C)C)[C@@H](C)c1ccc(Br)cc1)(N[S@](=O)C(C)(C)C)c1ccccc1 to produce C=C(C)CC(N)(CCN[C@@H](C)c1ccc(Br)cc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.