Using CC1(C)CC(=O)N(CCCCBr)C(=O)C1, c1ccc2c(N3CCNCC3)nsc2c1 to produce CC1(C)CC(=O)N(CCCCN2CCN(c3nsc4ccccc34)CC2)C(=O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.