Using Sc1ccccc1, Brc1c2ccccc2c(Br)c2ccccc12 to produce c1ccc(Sc2c3ccccc3c(Sc3ccccc3)c3ccccc23)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.