InChI=1/C23H28N4O2/c28-23(25-11-4-5-14-29-18-20-7-2-1-3-8-20)26-16-21-9-6-10-22(15-21)17-27-13-12-24-19-27/h1-3,6-10,12-13,15,19H,4-5,11,14,16-18H2,(H2,25,26,28)/f/h25-26H B56FD472C32B8E3D