InChI=1S/C17H18N6O/c18-5-3-15(11-1-2-13(24)7-11)23-9-12(8-22-23)16-14-4-6-19-17(14)21-10-20-16/h4,6,8-11,13,15,24H,1-3,7H2,(H,19,20,21)/t11?,13?,15-/m1/s1