InChI=1/C18H17ClN2O5/c1-11(12-4-3-5-13(19)8-12)20(2)18(22)15-9-14(21(23)24)10-16-17(15)26-7-6-25-16/h3-5,8-11H,6-7H2,1-2H3/t11-/m1/s1 CA243B3256E04F74