Using Cc1cccc(Br)n1, C[Sn](C)(C)c1ccc(S(=O)(=O)Oc2ccccc2)s1 to produce Cc1cccc(-c2ccc(S(=O)(=O)Oc3ccccc3)s2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.