InChI=1S/C20H24O3/c1-12-13-5-6-17-19(2,8-4-9-20(17,3)18(21)22)15(13)11-16-14(12)7-10-23-16/h7,10-11,17H,4-6,8-9H2,1-3H3,(H,21,22)/t17-,19-,20-/m1/s1