Using C=CC(C(C)(C)O[SiH2]C(C)(C)C)C(C)(C)C(=O)OC, CO to produce COC(=O)C(C)(C)C(C=O)C(C)(C)O[SiH2]C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.