InChI=1/C21H17N5O2/c27-26(28)20-8-6-18(7-9-20)23-14-17-15-25(19-4-2-1-3-5-19)24-21(17)16-10-12-22-13-11-16/h1-13,15,23H,14H2 0D923114478425E2