Using NO, CC1(C)CCC(N(C(=O)C(C)(C)C)[C@H]2C[C@@H](C=O)N(C(=O)OC(C)(C)C)C2)CC1 to produce CC1(C)CCC(N(C(=O)C(C)(C)C)[C@H]2C[C@@H](/C=N/O)N(C(=O)OC(C)(C)C)C2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.