Using COc1ccc(-c2nc(SCC=O)sc2-c2ccc(OC)cc2)cc1, OCCO to produce COc1ccc(-c2nc(SCC3OCCO3)sc2-c2ccc(OC)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.