Using Cc1nc(N2CCN(C)CC2)c2nnnn2c1Br, OB(O)c1cccs1 to produce Cc1nc(N2CCN(C)CC2)c2nnnn2c1-c1cccs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.