InChI=1/C13H13ClN4O/c1-8-3-5-11(16-7-8)18-13(19)12-9(14)4-6-10(15-2)17-12/h3-7H,1-2H3,(H,15,17)(H,16,18,19)/f/h15,18H 2B09DDFD338DB16B