Using CC1SCN(CCCCBr)C1=O, c1ccc2c(N3CCNCC3)nsc2c1 to produce CC1SCN(CCCCN2CCN(c3nsc4ccccc34)CC2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.