Using ClC(Cl)(Cl)Cl, COCOc1c(C)c(C)c2c(c1C)CCC(C)(C=O)O2 to produce COCOc1c(C)c(C)c2c(c1C)CCC(C)(C=C(Cl)Cl)O2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.