Using CCOC(COCCCCOc1c(Cl)cc(OCC=C(Cl)Cl)cc1Cl)OCC to produce O=CCOCCCCOc1c(Cl)cc(OCC=C(Cl)Cl)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.