Using CC(C)Oc1cc(NN)c(F)cc1Br, O=C(C(Br)Br)C(F)(F)F to produce CC(C)Oc1cc(NN=CC(=O)C(F)(F)F)c(F)cc1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.