Using OB(O)c1ccsc1, CCOC(=O)c1ccc(Oc2ccc(I)cc2)cc1 to produce CCOC(=O)c1ccc(Oc2ccc(-c3ccsc3)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.