InChI=1S/C20H32O2/c1-18(2)15-6-9-20-10-13(14(11-20)12-21)4-5-16(20)19(15,3)8-7-17(18)22/h13-16,21H,4-12H2,1-3H3/t13-,14+,15-,16+,19-,20+/m1/s1