InChI=1/C21H19N5O3/c1-13(27)24-19(10-16-12-23-18-5-3-2-4-17(16)18)21(29)26-25-20(28)15-8-6-14(11-22)7-9-15/h2-9,12,19,23H,10H2,1H3,(H,24,27)(H,25,28)(H,26,29)/t19-/m0/s1/f/h24-26H 4464180BCFB11CEF