Using Brc1ccc(P(c2ccccc2)c2ccccc2)cc1, CCO[Si](OCC)(OCC)OCC to produce CCO[Si](OCC)(OCC)c1ccc(P(c2ccccc2)c2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.