Using O=C1CCC(N2C(=O)c3csc([N+](=O)[O-])c3C2=O)C(=O)N1 to produce Nc1scc2c1C(=O)N(C1CCC(=O)NC1=O)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.