Using CN(C)C=O, OC(c1cnc(Br)s1)(C(F)(F)F)C(F)(F)F to produce O=Cc1ncc(C(O)(C(F)(F)F)C(F)(F)F)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.