InChI=1S/C20H34O2/c1-14(9-12-21)7-8-16-15(2)17(22)13-18-19(3,4)10-6-11-20(16,18)5/h9,17-18,21-22H,6-8,10-13H2,1-5H3/b14-9+/t17-,18+,20-/m0/s1