Using COC[C@@H]1CN(C(=O)OC(C)(C)C)C[C@H]1CO[Si](C)(C)C(C)(C)C to produce COC[C@@H]1CN(C(=O)OC(C)(C)C)C[C@H]1CO, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.