Using BrCCCBr, Oc1ccc2c(-c3ccccc3)noc2c1CC1CC1 to produce BrCCCOc1ccc2c(-c3ccccc3)noc2c1CC1CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.