Using FC(F)Oc1ccccc1CBr, COC(=O)c1sc(-n2cnc3ccncc32)cc1O to produce COC(=O)c1sc(-n2cnc3ccncc32)cc1OCc1ccccc1OC(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.