InChI=1S/C20H28O3/c1-14(13-18(21)22)8-9-17-20(5,23-17)12-10-16-15(2)7-6-11-19(16,3)4/h8-10,12-13,17H,6-7,11H2,1-5H3,(H,21,22)/b9-8+,12-10+,14-13+