Using C1=COCCC1, CC(C)(C)c1ccc(C(O)CO[Si](C)(C)C(C)(C)C)cc1 to produce CC(C)(C)c1ccc(C(CO[Si](C)(C)C(C)(C)C)OC2CCCCO2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.