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