InChI=1S/C27H34O9/c1-14(10-11-19-16(3)13-20(34-6)18(5)17(19)4)8-7-9-15(2)12-21(28)35-27-24(31)22(29)23(30)25(36-27)26(32)33/h7-11,13,22-25,27,29-31H,2,12H2,1,3-6H3,(H,32,33)/b9-7+,11-10+,14-8+