InChI=1S/C20H28O3/c1-14-6-7-17-16(5-4-10-20(17,3)18(21)22)19(14,2)11-8-15-9-12-23-13-15/h5,9,12-14,17H,4,6-8,10-11H2,1-3H3,(H,21,22)