InChI=1/C19H19N5O2/c1-12(2)24-17(26)10-9-16(23-24)15-11-20-19(21-13(3)25)22-18(15)14-7-5-4-6-8-14/h4-12H,1-3H3,(H,20,21,22,25)/f/h21H 4333FA3A5ED47834