Using CCOC(=O)C1C2CCC(O[Si](c3ccccc3)(c3ccccc3)C(C)(C)C)CCC21 to produce CCOC(=O)C1C2CCC(O)CCC21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.