Using CCc1ccc(C(OCCc2ccc(OC)c(OC)c2)(c2ccc(CC)cc2)C(O)C(=O)OC)cc1 to produce CCc1ccc(C(OCCc2ccc(OC)c(OC)c2)(c2ccc(CC)cc2)C(O)C(=O)O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.