InChI=1/C18H17N5O/c1-11(2)12-5-7-13(8-6-12)14-10-16-21-17(15-4-3-9-24-15)22-23(16)18(19)20-14/h3-11H,1-2H3,(H2,19,20)/f/h19H2 4F0C2B8941FB2FD8