Using ClCCl, COc1ccc(-c2nc(S)nn2-c2ccc(OC)cc2)cc1 to produce COc1ccc(-c2nc(SC)nn2-c2ccc(OC)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.