InChI=1S/C20H17ClN4O3/c21-13-5-6-16-15(9-13)12(10-23-16)7-8-22-18(26)11-25-19(27)14-3-1-2-4-17(14)24-20(25)28/h1-6,9-10,23H,7-8,11H2,(H,22,26)(H,24,28)