Using COCC(C)Nc1c([N+](=O)[O-])cnc2cc(-c3c(C)noc3C)c(OC)cc12 to produce COCC(C)Nc1c(N)cnc2cc(-c3c(C)noc3C)c(OC)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.