InChI=1S/C23H27NO/c1-15(2)8-7-9-16(3)12-13-19-22-20(14-17(4)23(19)25)18-10-5-6-11-21(18)24-22/h5-6,8,10-12,14,24-25H,7,9,13H2,1-4H3/b16-12-