Using COC(=O)/C=C/c1c(C)n[nH]c1C, BrCC=Cc1ccccc1 to produce COC(=O)/C=C/c1c(C)nn(CC=Cc2ccccc2)c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.