Using Brc1ccc2ccsc2c1, C[Si](C)(C)CCOCn1c(C=O)nc2ccccc21 to produce C[Si](C)(C)CCOCn1c(C(O)c2ccc3ccsc3c2)nc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.