InChI=1/C19H20ClN3O6/c1-9-6-10(2)15(11(3)7-9)21-19(25)22-18(24)14-16(28-4)12(20)8-13(23(26)27)17(14)29-5/h6-8H,1-5H3,(H2,21,22,24,25)/f/h21-22H 087D69082257572E