Using CC(C)(C)[Si](OC1CN(c2nc(CN=[N+]=[N-])cs2)C1)(c1ccccc1)c1ccccc1, COC(=O)Cl to produce COC(=O)NCc1csc(N2CC(O[Si](c3ccccc3)(c3ccccc3)C(C)(C)C)C2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.