Using COC(=O)c1c(NC(=O)C(C)(C)C)ccc(-c2ccoc2CO[Si](C)(C)C(C)(C)C)c1NC(C)=O to produce COC(=O)c1c(NC(=O)C(C)(C)C)ccc(-c2ccoc2CO)c1NC(C)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.