InChI=1S/C28H35NO/c1-18(2)8-7-14-28-23-17-22-21-9-5-6-10-24(21)29-25(22)16-20(23)13-15-27(28,4)19(3)11-12-26(28)30/h5-6,8-10,16-17,19,26,29-30H,7,11-15H2,1-4H3/t19-,26+,27+,28-/m1/s1