InChI=1/C28H26N2O9/c31-17-9-7-15(8-10-17)26(35)30-20-14-29-11-3-6-23(20)39-28(38)16-12-21(32)24(22(33)13-16)25(34)18-4-1-2-5-19(18)27(36)37/h1-2,4-5,7-10,12-13,20,23,29,31-33H,3,6,11,14H2,(H,30,35)(H,36,37)/t20-,23-/m1/s1/f/h29-30H F361BDED70D977F4