InChI=1/C18H21N5O/c19-8-12-16(14-10-24-7-6-15(14)22-18(12)20)13-9-21-23-17(13)11-4-2-1-3-5-11/h9,11H,1-7,10H2,(H2,20,22)(H,21,23)/f/h21H,20H2 7BE985819E8B72CE