InChI=1S/C28H30N4O9/c1-12(11-33)7-18(28(39)40)31-26(37)19-9-15-20(22(35)24(41-2)23(36)21(15)34)25-30-17(27(38)32(19)25)8-13-10-29-16-6-4-3-5-14(13)16/h3-6,10,12,17-19,25,29-30,33,36H,7-9,11H2,1-2H3,(H,31,37)(H,39,40)/t12?,17-,18-,19?,25-/m0/s1