Using COC(=O)N=C(NC(=O)OC)SC, CNc1ccc(Oc2ccc([N+](=O)[O-])cc2)cc1[N+](=O)[O-] to produce COC(=O)Nc1nc2cc(Oc3ccc(N)cc3)ccc2n1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.