InChI=1S/C20H28N2O10/c1-29-11-8-9(15-17(31-15)18(26)22-7-3-2-6-21)4-5-10(11)30-20-14(25)12(23)13(24)16(32-20)19(27)28/h4-5,8,12-17,20,23-25H,2-3,6-7,21H2,1H3,(H,22,26)(H,27,28)