InChI=1S/C28H33NO4/c1-17-9-8-12-22-15-19(3)20(4)25-23(16-21-10-6-5-7-11-21)29-27(32)28(22,25)33-24(30)14-13-18(2)26(17)31/h5-8,10-13,15,17,20,22-23,25H,9,14,16H2,1-4H3,(H,29,32)/b12-8+,18-13+/t17-,20+,22-,23-,25-,28+/m0/s1