InChI=1/C17H18N4O2/c18-17(23)19-11-8-4-7-10-12(11)16(22)13-14(20-21-15(10)13)9-5-2-1-3-6-9/h4,7-9H,1-3,5-6H2,(H,20,21)(H3,18,19,23)/f/h19,21H,18H2 C39B5C12F0CF10AA