Using BrBr, Oc1ccc(-c2ccc(-c3c(Cc4ccccc4)sc4ccccc34)cc2)cc1 to produce Oc1ccc(-c2ccc(-c3c(Cc4ccccc4)sc4ccccc34)cc2)cc1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.