InChI=1/C16H13N5O/c1-9-3-2-4-10(7-9)21-15-11(14(20-21)16(17)22)5-6-13-12(15)8-18-19-13/h2-8H,1H3,(H2,17,22)(H,18,19)/f/h19H,17H2 475C2CF8E420E890