Using Brc1cccc(Br)n1, CC(C)(C)OC(=O)N1CCC2(CCC(=O)CC2)CC1 to produce Brc1cccc(C2=CCC3(CCNCC3)CC2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.