Using O=c1oc(CO)c(-c2ccccc2)c2ccccc12, BrC(Br)(Br)Br to produce O=c1oc(CBr)c(-c2ccccc2)c2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.