InChI=1/C20H21N5O/c21-16-3-1-2-15(14-16)19-8-9-22-20(24-19)23-17-4-6-18(7-5-17)25-10-12-26-13-11-25/h1-9,14H,10-13,21H2,(H,22,23,24)/f/h23H 6C7808D732C2D11A