Using O=C(O)c1ccc(F)c(Br)n1, OB(O)c1ccc(OCc2ccccc2)cc1F to produce O=C(O)c1ccc(F)c(-c2ccc(OCc3ccccc3)cc2F)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.