Using CN1C(c2ccccc2[SiH2]C(c2ccccc2)c2ccccc2)OCC1(C)C to produce O=Cc1ccccc1[SiH2]C(c1ccccc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.