Using CC1COc2c(F)c(F)cc3c(=O)c(C(=O)O)cn1c23, O=[N+]([O-])c1cccc2c1CNC2 to produce CC1COc2c(N3Cc4cccc([N+](=O)[O-])c4C3)c(F)cc3c(=O)c(C(=O)O)cn1c23, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.