Using OB(O)c1cccs1, CC(C)(C)OC(=O)N1CCN(c2ncc(Br)c3nnnn23)CC1 to produce CC(C)(C)OC(=O)N1CCN(c2ncc(-c3cccs3)c(N)n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.