InChI=1/C28H34N4O2/c1-19(2)31-27(29)23-8-12-25(13-9-23)33-17-21-6-5-7-22(16-21)18-34-26-14-10-24(11-15-26)28(30)32-20(3)4/h5-16,19-20H,17-18H2,1-4H3,(H2,29,31)(H2,30,32)/p+2/fC28H36N4O2/h31-32H,29-30H2/q+2 FBFF99EFFF1DBEBB