InChI=1S/C31H35NO8/c1-3-22(25(19-9-5-4-6-10-19)20-13-15-21(16-14-20)38-18-17-32-2)23-11-7-8-12-24(23)39-31-28(35)26(33)27(34)29(40-31)30(36)37/h4-16,26-29,31-35H,3,17-18H2,1-2H3,(H,36,37)/b25-22+