Using COC(=O)c1cc(OC)c(Cl)c(OCCc2ccc(Cl)cc2Cl)c1 to produce COc1cc(C(=O)O)cc(OCCc2ccc(Cl)cc2Cl)c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.