Using CN(C)C=O, CC(C)(C)OC(=O)NC1CCc2cc(Br)ccc2C1 to produce CC(C)(C)OC(=O)NC1CCc2cc(C=O)ccc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.