InChI=1S/C25H26O6/c1-16(2)10-12-19-14-17(11-13-20(19)29-3)15-25(24(28)30-4)21(22(26)23(27)31-25)18-8-6-5-7-9-18/h5-11,13-14,26H,12,15H2,1-4H3/t25-/m1/s1