InChI=1/C12H13ClN2O5/c1-20-9-5-6(4-7(13)12(9)17)11-8(15(18)19)2-3-10(16)14-11/h4-5,8,11,17H,2-3H2,1H3,(H,14,16)/t8-,11-/m1/s1/f/h14H 2C3D82149C89518B