InChI=1S/C25H26O6/c1-5-13(2)21(27)20-22(28)19-15(14-9-7-6-8-10-14)12-18(26)31-23(19)16-11-17(25(3,4)29)30-24(16)20/h6-10,12-13,17,28-29H,5,11H2,1-4H3