InChI=1S/C20H34O2/c1-16(11-15-21)8-6-13-20(5,22)14-10-18-17(2)9-7-12-19(18,3)4/h6,11,13,18,21-22H,2,7-10,12,14-15H2,1,3-5H3/b13-6+,16-11+/t18-,20-/m1/s1