InChI=1S/C24H23ClN2O4/c1-3-30-22(24(28)29)13-16-8-9-21-17(12-16)10-11-27(21)14-20-15(2)31-23(26-20)18-6-4-5-7-19(18)25/h4-12,22H,3,13-14H2,1-2H3,(H,28,29)/t22-/m0/s1