Using CN(C)C=O, Brc1cn(C(c2ccccc2)(c2ccccc2)c2ccccc2)cn1 to produce O=Cc1nc(Br)cn1C(c1ccccc1)(c1ccccc1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.