InChI=1S/C15H15ClN2O5/c1-23-13(20)6-12(19)18-11(15(21)22)5-8-7-17-10-4-2-3-9(16)14(8)10/h2-4,7,11,17H,5-6H2,1H3,(H,18,19)(H,21,22)/t11-/m1/s1