InChI=1/C21H19N5O2/c1-13-2-8-19-17(10-13)18-11-14(3-9-20(18)23-19)21(27)28-16-6-4-15(5-7-16)26-12-22-24-25-26/h3-7,9,11-13,23H,2,8,10H2,1H3/t13-/m1/s1 32392F491A560202