Using COC(=O)c1cc(C)c(Br)c(S(=O)(=O)Cc2cccc(Cl)c2O[Si](C)(C)C(C)(C)C)c1 to produce COC(=O)c1cc(C)c2c(c1)S(=O)(=O)Cc1cccc(Cl)c1O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.