InChI=1S/C23H30O5/c1-13(2)9-16-10-23(7-5-15(6-8-23)14(3)4)28-22-18(12-25)20(26)17(11-24)21(27)19(16)22/h5,7,11-16,26-27H,6,8-10H2,1-4H3