Using COC(=O)COc1cc(OC)cc(OC)c1C(=O)CCc1ccc(OC)cc1 to produce COc1ccc(CCC(=O)c2c(OC)cc(OC)cc2OCC(=O)O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.