Using C1=COCCC1, O=c1c(Br)c(Br)cnn1-c1ccc(O)cc1 to produce O=c1c(Br)c(Br)cnn1-c1ccc(OC2CCCCO2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.