Using CN1CCN(c2ccc(N)nc2)CC1, Cn1cc(Br)cc(Br)c1=O to produce CN1CCN(c2ccc(Nc3cc(Br)cn(C)c3=O)nc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.