Using Brc1cccc(CC(Br)(Cc2cccc(Br)c2)Cc2cccc(Br)c2)c1 to produce Brc1cccc(CC(Cc2cccc(Br)c2)Cc2cccc(Br)c2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.