InChI=1S/C28H32O8/c1-24(2)10-9-22(29)26(4)27(24,31)12-11-25(3)28(26,32)15-17-20(36-25)14-19(35-23(17)30)16-7-8-18(33-5)21(13-16)34-6/h7-10,13-14,31-32H,11-12,15H2,1-6H3/t25-,26+,27-,28-/m1/s1