InChI=1S/C20H34O3/c1-2-3-4-5-9-12-15-18-19(23-18)16-13-10-7-6-8-11-14-17-20(21)22/h9-10,12-13,18-19H,2-8,11,14-17H2,1H3,(H,21,22)/b12-9-,13-10-