InChI=1S/C21H12ClN3O3/c22-14-4-2-1-3-11(14)12-8-16-17(19-18(12)20(27)25-21(19)28)13-7-10(23-9-26)5-6-15(13)24-16/h1-9,24H,(H,23,26)(H,25,27,28)