InChI=1S/C26H28N4O/c1-4-16-12-19-20(13-22(16)30-9-7-17(28)8-10-30)26(2,3)25-23(24(19)31)18-6-5-15(14-27)11-21(18)29-25/h5-6,11-13,17,29H,4,7-10,28H2,1-3H3