Using CS(=O)(=O)Cl, OCCC1(CCO)c2ccccc2Oc2ccccc21 to produce CS(=O)(=O)OCCC1(CCOS(C)(=O)=O)c2ccccc2Oc2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.