InChI=1S/C26H35N3O7/c1-36-24-17-19(6-9-21(24)31)16-23(33)26(35)29-13-3-2-11-27-12-4-14-28-25(34)10-7-18-5-8-20(30)22(32)15-18/h5-10,15,17,23,27,30-33H,2-4,11-14,16H2,1H3,(H,28,34)(H,29,35)/b10-7+