Using CC(C)(C)OC(=O)N[C@@H](Cc1cn(Cc2ccccc2)nc1[N+](=O)[O-])C(=O)O, OCC(F)(F)F to produce CC(C)(C)OC(=O)N[C@@H](Cc1cn(Cc2ccccc2)nc1[N+](=O)[O-])C(=O)OCC(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.