Using COC1(OC)C2(Cl)C(Cl)=C(Cl)C1(Cl)C1OC(=O)OC12 to produce COC1(OC)C2(Cl)C(Cl)=C(Cl)C1(Cl)C(O)C2O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.