InChI=1/C15H13ClN2O4/c1-9(10-2-5-12(16)6-3-10)17-15(20)11-4-7-13(18(21)22)14(19)8-11/h2-9,19H,1H3,(H,17,20)/t9-/m0/s1/f/h17H 23B43608D663FE64