InChI=1S/C20H27NO3/c1-16(2)15-21-20(24)11-9-7-5-3-4-6-8-10-17-12-13-18(22)19(23)14-17/h5,7-14,16,22-23H,3-4,6,15H2,1-2H3,(H,21,24)/b7-5+,10-8+,11-9+