Using COc1ccc2c(c1)OC([Si](C)(C)C(C)(C)C)C2=CO[Si](C)(C)C(C)(C)C to produce COc1ccc2c(C=O)c([Si](C)(C)C(C)(C)C)oc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.