InChI=1S/C18H17N5O2/c1-25-11-5-2-10(3-6-11)4-7-12-15-13(17(24)23-18(19)22-15)8-14-16(12)21-9-20-14/h2-3,5-6,8-9H,4,7H2,1H3,(H,20,21)(H3,19,22,23,24)