InChI=1S/C20H26O3/c1-14(7-6-8-15(2)13-19(22)23)9-11-17-16(3)10-12-18(21)20(17,4)5/h6-9,11,13H,10,12H2,1-5H3,(H,22,23)/b8-6+,11-9+,14-7+,15-13-