Using O=[N+]([O-])C=C1NCCN1Cc1ccc(Br)nc1, OCC(F)(F)F to produce O=[N+]([O-])C=C1NCCN1Cc1ccc(OCC(F)(F)F)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.