InChI=1S/C31H55NO/c1-3-5-7-9-11-13-15-17-22-28-32(29-23-18-16-14-12-10-8-6-4-2)31(33)27-26-30-24-20-19-21-25-30/h19-21,24-25H,3-18,22-23,26-29H2,1-2H3