Using CCOC(C)=O, Cc1ccn2cc(C(=O)N3CCN(c4ccc([N+](=O)[O-])c(C=O)c4)CC3)nc2c1 to produce CCOC(=O)C=Cc1cc(N2CCN(C(=O)c3cn4ccc(C)cc4n3)CC2)ccc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.