InChI=1S/C23H34O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-21-18-22(24)20-23(25)19-21/h12-20,24-25H,2-11H2,1H3/b13-12+,15-14+,17-16+