InChI=1S/C20H34O2/c1-15(12-14-21)8-11-19(22)17(3)9-10-18-16(2)7-6-13-20(18,4)5/h12,18-19,21-22H,2-3,6-11,13-14H2,1,4-5H3/b15-12+/t18-,19+/m1/s1