Using COCOc1cc(C2=C(C(=O)OC)CCC2)c(OCOC)c(C(C)(C)O[SiH2]C(C)(C)C)c1 to produce COCOc1cc(C2CCCC2C(=O)OC)c(OCOC)c(C(C)(C)O[SiH2]C(C)(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.