Using BrCCCOc1ccc(-c2csc3ccccc23)cc1, c1cnc(N2CCNCC2)nc1 to produce c1cnc(N2CCN(CCCOc3ccc(-c4csc5ccccc45)cc3)CC2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.