Using CC(=O)OCC(=O)[C@@]1(OC(C)=O)CC[C@H]2[C@@H]3CC[C@H]4CC(=O)CC[C@]4(C)[C@@]3(F)[C@@H](O[Si](C)(C)C)C[C@@]21C to produce CC(=O)OCC(=O)C1=CC[C@H]2[C@@H]3CC[C@H]4CC(=O)CC[C@]4(C)[C@@]3(F)[C@@H](O[Si](C)(C)C)C[C@]12C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.