Using COc1ccc(CN2CCN(CC3(C)Cn4cc([N+](=O)[O-])nc4O3)C2=O)c(OC)c1 to produce CC1(CN2CCNC2=O)Cn2cc([N+](=O)[O-])nc2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.