Using CC1(C)CC(=O)CC(C)(C)N1, N=C(NN)NN to produce CC1(C)CC(=NNC(=N)NN=C2CC(C)(C)NC(C)(C)C2)CC(C)(C)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.