Clc1ccc(cc1)OC(C)(C)C(=O)OC2C(OC(=O)C(C)(C)Oc3ccc(Cl)cc3)C(OC(=O)C(C)(C)Oc4ccc(Cl)cc4)C(OC(=O)C(C)(C)Oc5ccc(Cl)cc5)C(OC(=O)C(C)(C)Oc6ccc(Cl)cc6)C2OC(=O)C(C)(C)Oc7ccc(Cl)cc7