InChI=1S/C26H35N3O7/c1-36-22-17-18(5-9-20(22)30)6-11-23(32)28-15-3-2-13-27-14-4-16-29-24(33)12-8-19-7-10-21(31)26(35)25(19)34/h5,7-10,12,17,27,30-31,34-35H,2-4,6,11,13-16H2,1H3,(H,28,32)(H,29,33)/b12-8+