InChI=1/C24H17N3O4/c28-23-16-5-1-2-6-18(16)26-21-17(23)12-27(24(29)15-4-3-9-25-11-15)22(21)14-7-8-19-20(10-14)31-13-30-19/h1-11,22H,12-13H2,(H,26,28)/t22-/m0/s1/f/h26H 2C21BC0B36497E00