Using COC(=O)C[C@@H]1[C@@H]([C@@H](C)O[Si](C)(C)C(C)(C)C)C(=O)N1[Si](C)(C)C(C)(C)C to produce C[C@@H](O[Si](C)(C)C(C)(C)C)[C@H]1C(=O)N([Si](C)(C)C(C)(C)C)[C@@H]1CC=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.