InChI=1S/C28H37NO10/c1-18(16-36-28-25(33)23(31)24(32)26(39-28)27(34)35)15-29-22(30)11-9-7-5-3-2-4-6-8-10-19-12-13-20-21(14-19)38-17-37-20/h5,7-14,18,23-26,28,31-33H,2-4,6,15-17H2,1H3,(H,29,30)(H,34,35)/b7-5+,10-8+,11-9+