InChI=1/C16H19N5O/c17-16-19-14(13-7-4-8-22-13)12-9-18-21(15(12)20-16)10-11-5-2-1-3-6-11/h4,7-9,11H,1-3,5-6,10H2,(H2,17,19,20)/f/h17H2 A288427E24E76527