InChI=1S/C26H33N3O7/c1-36-23-17-18(5-8-20(23)30)6-9-24(33)28-13-3-2-11-27-12-4-14-29-25(34)10-7-19-15-21(31)26(35)22(32)16-19/h5-10,15-17,27,30-32,35H,2-4,11-14H2,1H3,(H,28,33)(H,29,34)/b9-6?,10-7+