Using O=C(NC1=N[C@](CF)(c2nc(Br)ccc2F)C[C@@H](C(F)(F)F)O1)c1ccccc1 to produce NC1=N[C@](CF)(c2nc(Br)ccc2F)C[C@@H](C(F)(F)F)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.