InChI=1/C13H13ClN4O4/c14-9-7-8(18(21)22)1-2-10(9)17-5-3-13(4-6-17)11(19)15-12(20)16-13/h1-2,7H,3-6H2,(H2,15,16,19,20)/f/h15-16H 0A2B7ABAC8C4F1A2