InChI=1/C13H16ClN3O4/c1-21-13(20)17-4-2-9(3-5-17)16-11(18)8-6-10(14)12(19)15-7-8/h6-7,9H,2-5H2,1H3,(H,15,19)(H,16,18)/f/h15-16H 233DEE22826A6A73