InChI=1S/C23H30O2/c1-16(15-25-21(24)12-17-9-5-4-6-10-17)8-7-11-22(2)18-13-19-20(14-18)23(19,22)3/h4-6,8-10,18-20H,7,11-15H2,1-3H3/b16-8-