InChI=1S/C24H33N3O4/c1-27(2)17-9-16-25-24(29)20(11-4-3-5-15-23(28)26-30)18-31-22-14-8-12-19-10-6-7-13-21(19)22/h6-8,10-14,30H,3-5,9,15-18H2,1-2H3,(H,25,29)(H,26,28)/b20-11+