Using COC(=O)c1sc(C#CC(C)(C)C)cc1N[C@@H](C)CCO[Si](C)(C)C(C)(C)C to produce COC(=O)c1sc(C#CC(C)(C)C)cc1N[C@@H](C)CCO, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.