Using COCOc1ccc(C)c(CO[Si](C)(C)C(C)(C)C)c1, O=C1CCC1 to produce COCOc1ccc(C)c(CO[Si](C)(C)C(C)(C)C)c1C1(O)CCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.