Using C[Si](C)(C)CCOCn1ccc2c(Cl)nc(Cl)nc21, [OH-] to produce C[Si](C)(C)CCOCn1ccc2c(=O)[nH]c(Cl)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.