InChI=1/C19H19N5O/c25-18(24-23-17-11-5-7-13-21-17)14-22-19(15-8-2-1-3-9-15)16-10-4-6-12-20-16/h1-13,19,22H,14H2,(H,21,23)(H,24,25)/t19-/m0/s1/f/h23-24H 9DC7547711C133E1