InChI=1S/C20H34O3/c1-19(21)17-15-13-11-9-7-5-3-2-4-6-8-10-12-14-16-18-20(22)23/h3-6,9,11,19,21H,2,7-8,10,12-18H2,1H3,(H,22,23)/b5-3-,6-4-,11-9-