Using CN(C)C=O, Cc1ccc(C2=CC(C)(C)Sc3ccc(Br)cc32)cc1 to produce Cc1ccc(C2=CC(C)(C)Sc3ccc(C=O)cc32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.