Using C[Si](C)(C)c1cc(C(=O)Nc2ccc(C=CC(=O)O)cc2)cc([Si](C)(C)C)c1 to produce C[Si](C)(C)c1cc(C(=O)Nc2ccc(CCC(=O)O)cc2)cc([Si](C)(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.