Using COc1ccc(-c2ccc(C(C)=O)cc2C(=O)O)c(OC)c1 to produce COc1ccc2c(c1)oc(=O)c1cc(C(C)=O)ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.