InChI=1S/C20H32O2/c1-13(2)14-6-8-16-15(12-14)7-9-17-19(16,3)10-5-11-20(17,4)18(21)22/h7,12-13,16-18,21-22H,5-6,8-11H2,1-4H3/t16-,17?,19+,20+/m0/s1