InChI=1S/C20H28O3/c1-13(12-16(21)22)8-6-9-15(3)18-19(23-18)17-14(2)10-7-11-20(17,4)5/h6,8-9,12,18-19H,7,10-11H2,1-5H3,(H,21,22)/b8-6+,13-12+,15-9-