Using CC1(C)OB(c2ccc(S(C)(=O)=O)cc2F)OC1(C)C, CSc1ncnc2c(Br)csc12 to produce CSc1ncnc2c(-c3ccc(S(C)(=O)=O)cc3F)csc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.