InChI=1S/C25H34O7/c1-22-12-18-20-17(25(22,29)10-7-16(22)14-3-4-19(27)31-13-14)6-8-23(28)11-15(26)5-9-24(20,23)21(30-2)32-18/h3-4,13,15-18,20-21,26,28-29H,5-12H2,1-2H3