Using CNc1ncnn2c(C)nc(-c3cnn(C)c3Br)c12, OB(O)c1ccc(C(F)(F)F)cc1 to produce CNc1ncnn2c(C)nc(-c3cnn(C)c3-c3ccc(C(F)(F)F)cc3)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.