InChI=1S/C25H26O6/c1-14(2)5-4-9-25(3)10-8-17-21(31-25)13-22-23(24(17)29)19(28)12-20(30-22)16-7-6-15(26)11-18(16)27/h5-8,10-11,13,20,26-27,29H,4,9,12H2,1-3H3