InChI=1/C15H13N3O2/c16-14(20)11-5-2-6-12-13(11)18-15(17-12)10-4-1-3-9(7-10)8-19/h1-7,19H,8H2,(H2,16,20)(H,17,18)/f/h17H,16H2 8CE9C0CF01F30D28