InChI=1S/C28H33NO2/c1-4-28(30)29(21-23-11-7-5-8-12-23)20-19-27(24-13-9-6-10-14-24)25-15-17-26(18-16-25)31-22(2)3/h5-18,22,27H,4,19-21H2,1-3H3