Using CS(=O)(=O)OCC1CCCOC1, COCCn1nc(-c2ccc(O)cc2)oc1=O to produce COCCn1nc(-c2ccc(OCC3CCCOC3)cc2)oc1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.