Using CCOC(=O)CC(C#N)(CCOC1CCCCO1)c1ccc(Cl)c(Cl)c1 to produce O=C1CC(CCOC2CCCCO2)(c2ccc(Cl)c(Cl)c2)CN1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.