InChI=1S/C26H25N3O4/c1-28-25(30)19-5-3-4-16-12-17(6-7-18(16)19)33-22-8-11-29-21-14-24(23(31-2)13-20(21)22)32-15-26(27)9-10-26/h3-8,11-14H,9-10,15,27H2,1-2H3,(H,28,30)