InChI=1S/C15H17N5O2/c21-9-5-4-8-20-10-16-12-13(20)18-15(19-14(12)22)17-11-6-2-1-3-7-11/h1-3,6-7,10,21H,4-5,8-9H2,(H2,17,18,19,22)