InChI=1S/C24H24O7/c1-23(2)18(25)12-16-11-14(9-10-17(16)30-23)13-24(22(28)29-3)19(20(26)21(27)31-24)15-7-5-4-6-8-15/h4-11,18,25-26H,12-13H2,1-3H3/t18?,24-/m1/s1