InChI=1S/C22H34O4/c1-18(23)14-11-9-7-5-3-2-4-6-8-10-12-15-19-16-13-17-20(24)21(19)22(25)26/h3,5,13,16-18,23-24H,2,4,6-12,14-15H2,1H3,(H,25,26)/b5-3+