InChI=1S/C25H24O6/c1-24(2)8-7-14-9-13(5-6-18(14)31-24)16-12-29-23-15-10-20(25(3,4)28)30-19(15)11-17(26)21(23)22(16)27/h5-9,11-12,20,26,28H,10H2,1-4H3/t20-/m1/s1