InChI=1S/C20H34O5/c1-3-4-7-10-18(23)14-13-17(15-21)19(16(2)22)11-8-5-6-9-12-20(24)25/h5,8,13-14,17-19,21,23H,3-4,6-7,9-12,15H2,1-2H3,(H,24,25)/b8-5-,14-13+