Using CC(C)(C)[O-], CN1CCC[C@@H]1Cc1c[nH]c2ccc(Br)cc12 to produce C=CCn1cc(C[C@H]2CCCN2C)c2cc(Br)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.