InChI=1S/C23H30O5/c1-12(2)7-14-8-23(6-5-22(13(3)4)9-17(22)23)28-21-16(11-25)19(26)15(10-24)20(27)18(14)21/h10-14,17,26-27H,5-9H2,1-4H3