InChI=1/C15H18N4O/c1-9-14(10(2)19(3)18-9)17-15(20)13-8-11-6-4-5-7-12(11)16-13/h4-7,13,16H,8H2,1-3H3,(H,17,20)/t13-/m0/s1/f/h17H F45BF24E96EF2A34