Using CC(C)(C)[Si](C)(C)Oc1cccc2ccc(-c3nnc4cc(C(O)CO)ccn34)nc12 to produce CC(C)(C)[Si](C)(C)Oc1cccc2ccc(-c3nnc4cc(C=O)ccn34)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.