Using CC(=O)O[C@H]1CC[C@@]2(CO[Si](C)(C)C)[C@@H](CC[C@H]3[C@@H]4CC[C@H](OC(C)=O)[C@@]4(C)CC[C@@H]32)C1 to produce C[C@]12CC[C@H]3[C@@H](CC[C@H]4C[C@@H](O)CC[C@@]43CO[Si](C)(C)C)[C@@H]1CC[C@@H]2O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.