Using CCC(C)(O)c1cnc(S)s1, O=c1cc(-c2ccc(F)cc2)c2ccc(Br)cc2o1 to produce CCC(C)(O)c1cnc(Sc2ccc3c(-c4ccc(F)cc4)cc(=O)oc3c2)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.