Using CN1CCC[C@@H]1Cc1c[nH]c2ccc(Br)cc12, C=CS(=O)(=O)CC to produce CCS(=O)(=O)C=Cc1ccc2[nH]cc(C[C@H]3CCCN3C)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.