Using CCOC(C)=O, CC(C)(C)[Si](Oc1cccc2c1CCCC2=O)(c1ccccc1)c1ccccc1 to produce CCOC(=O)CC1=CCCc2c(O[Si](c3ccccc3)(c3ccccc3)C(C)(C)C)cccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.