Using O=S(=O)(c1ccccc1)n1ccc2c(Br)ccnc21, C[Si](C)(C)Cl to produce C[Si](C)(C)c1cc2c(Br)ccnc2n1S(=O)(=O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.