Using CN(C)C=O, CC(C)(C)[Si](C)(C)Oc1ccc2cc(Br)ccc2c1 to produce CC(C)(C)[Si](C)(C)Oc1ccc2cc(C=O)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.