Using CC(C)(C)[SiH2]OC(C)(C)C12C=CC(C(C)(C)O[SiH2]C(C)(C)C)(CC(=O)C1)O2 to produce CC(C)(C)[SiH2]OC(C)(C)C12CCC(C(C)(C)O[SiH2]C(C)(C)C)(CC(=O)C1)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.