InChI=1S/C20H30O3/c1-15(7-5-9-17(14-21)13-19(22)23)10-11-18-16(2)8-6-12-20(18,3)4/h5,7,9-11,17,21H,6,8,12-14H2,1-4H3,(H,22,23)/b9-5+,11-10+,15-7-