Using O=C(c1cc2cc(Br)ccc2[nH]1)N1CCOCC1, O=S(=O)(OCC(F)(F)F)C(F)(F)F to produce O=C(c1cc2cc(Br)ccc2n1CC(F)(F)F)N1CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.