InChI=1S/C23H30O2/c1-17(16-25-22(24)14-19-9-5-4-6-10-19)8-7-13-23(3)18(2)20-11-12-21(23)15-20/h4-6,8-10,20-21H,2,7,11-16H2,1,3H3/b17-8-