InChI=1S/C20H30O3/c1-15(8-6-13-20(5,23)14-18(21)22)10-11-17-16(2)9-7-12-19(17,3)4/h6,8,10-11,13,23H,7,9,12,14H2,1-5H3,(H,21,22)/b11-10+,13-6+,15-8-