Using O=C(c1ccc(Cl)cc1)c1ccc(-c2ccccc2)cc1, [S-2] to produce O=C(c1ccc(S)cc1)c1ccc(-c2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.