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