Using CC1(C)CC(=O)CC(C)(C)N1O, NCCNCCN to produce CC1(C)CC(NCCNCCNC2CC(C)(C)N(O)C(C)(C)C2)CC(C)(C)N1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.