InChI=1/C18H13ClN4O5/c1-10-2-5-12(8-15(10)23(27)28)21-16(24)14-9-20-18(26)22(17(14)25)13-6-3-11(19)4-7-13/h2-9H,1H3,(H,20,26)(H,21,24)/f/h20-21H 8F794D2C7316E46E