InChI=1S/C21H34O4/c1-2-3-6-9-17(22)12-13-18-16-14-20(25-15-16)19(18)10-7-4-5-8-11-21(23)24/h4,7,12-13,16-20,22H,2-3,5-6,8-11,14-15H2,1H3,(H,23,24)