Using C[C@@H]1[C@H]2C[C@@H](C[C@H]1Nc1cnn(CC(=S)NCc3ccncc3)c(=O)c1Br)C2(C)C, C[Si](C)(C)N=[N+]=[N-] to produce C[C@@H]1[C@H]2C[C@@H](C[C@H]1Nc1cnn(Cc3nnnn3Cc3ccncc3)c(=O)c1Br)C2(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.