InChI=1/C22H19N5O/c23-18-12-6-5-11-17(18)22(28)27-26-20(15-8-2-1-3-9-15)21-24-14-16-10-4-7-13-19(16)25-21/h1-13H,14,23H2,(H,24,25)(H,27,28)/b26-20+/f/h24,27H 814E22D9AB316E51