InChI=1S/C21H34O3/c1-17(2)9-6-10-18(3)11-7-13-20(21(22)23)14-8-12-19(4)15-16-24-5/h9,11,14-15H,6-8,10,12-13,16H2,1-5H3,(H,22,23)/b18-11+,19-15+,20-14-