Using CCOC(=O)/C=C/c1c(Oc2ccc([N+](=O)[O-])cc2)ccnc1N to produce Nc1ccc(Oc2ccnc3c2CCC(=O)N3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.