Using CC1(C)CN(c2cnc(N3CCOCC3)c([N+](=O)[O-])c2)CCO1 to produce CC1(C)CN(c2cnc(N3CCOCC3)c(N)c2)CCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.