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