Using O=[N+]([O-])c1ccc2c(c1)OCC(C(F)(F)F)N2CC(F)(F)F to produce Nc1ccc2c(c1)OCC(C(F)(F)F)N2CC(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.