Using C[Si](C)(C)CC(O)CCc1ccc(S(=O)(=O)c2ccccc2)cc1Br to produce C=CCCc1ccc(S(=O)(=O)c2ccccc2)cc1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.