InChI=1/C16H17N5O2/c22-15-11-4-1-2-5-13(11)21-14(18-15)10-12(19-21)16(23)20-8-3-6-17-7-9-20/h1-2,4-5,10,17H,3,6-9H2,(H,18,22)/f/h17H 2E122B5520A4536D