InChI=1S/C26H33N3O7/c1-36-23-17-19(5-7-21(23)31)6-8-24(33)28-15-3-2-13-27-14-4-16-29-25(34)10-12-26(35)11-9-20(30)22(32)18-26/h5-12,17-18,27,31-32,35H,2-4,13-16H2,1H3,(H,28,33)(H,29,34)/b8-6?,12-10+