InChI=1S/C20H32O2/c1-5-18(2)10-8-15-14(12-18)6-7-16-19(15,3)11-9-17(22)20(16,4)13-21/h5,12,15-17,21-22H,1,6-11,13H2,2-4H3/t15-,16+,17-,18-,19+,20?/m1/s1